CVE-2021-29425: Possible limited path traversal vulnerabily in Apache Commons IO
Noroxi assessment
Priority: Monitor (action score 22/100)
- Public proof-of-concept code exists (GitHub); there is no record of exploitation in the wild.
- Probability of exploitation in the next 30 days: 10.5% (FIRST EPSS); higher than 95.8% of all records.
- Anyone who can reach it over the internet can trigger it. No account or password is required. No user action is required. Special conditions such as timing or configuration are required.
- According to CISA the attack is automatable: targets can be found by mass scanning.
- Fixed version: commons-io (Debian:12) 2.8.0-1; commons-io (Debian:9) 2.5-1+deb9u1; commons-io:commons-io (Maven) 2.7.
- Mentioned 6 times in Turkish national cyber security advisories (siberguvenlik.gov.tr).
Low priority for now. Upgrade to commons-io (Debian:12) 2.8.0-1; commons-io (Debian:9) 2.5-1+deb9u1; commons-io:commons-io (Maven) 2.7 or later.
Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it
Primary sources: NVD · CVE.org · FIRST EPSS
In Apache Commons IO before 2.7, When invoking the method FileNameUtils.normalize with an improper input string, like "//../foo", or "\\..\foo", the result would be the same value, thus possibly providing access to files in the parent directory, but not further above (thus "limited" path traversal), if the calling code would use the result to construct a path value.
- Published
- Apr 13, 2021
- Updated
- Oct 7, 2026
- EPSS
- 10.5% · 95th percentile
- CWE
- CWE-20
Report tools
Action score
22
Monitor
Low priority for now.
- CVSS
- 19 / 40 · 4.8 / 10
- CISA KEV
- 0 / 30 · Not listed
- EPSS
- 3 / 30 · 10.5%
CISA SSVC decision
- Exploitation
- none
- Automatable
- yes
- Technical impact
- partial
Vulnrichment: CISA's decision-tree inputs.
CNA vs NVD score
- NVD
- 4.8
- CNA · apache
- 6.5
- 1.7 point gap
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.
Get told when this record changes
- Not in KEV: no record of exploitation in the wild
- Proof of concept exists, no weaponized module
- A fix has been released
If any of these changes, we'll tell you in the daily email digest.
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Noroxi analysis
What does it mean in your environment?
The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.
We use this product, ask for helpAffected systems
Is your version affected?
Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.
| Vendor | Product | CPE |
|---|---|---|
| apache | commons io | cpe:2.3:a:apache:commons_io |
| debian | debian linux | cpe:2.3:o:debian:debian_linux |
| oracle | access manager | cpe:2.3:a:oracle:access_manager |
| oracle | agile engineering data management | cpe:2.3:a:oracle:agile_engineering_data_management |
| oracle | agile product lifecycle management | cpe:2.3:a:oracle:agile_product_lifecycle_management |
| oracle | application performance management | cpe:2.3:a:oracle:application_performance_management |
| oracle | application testing suite | cpe:2.3:a:oracle:application_testing_suite |
| oracle | banking apis | cpe:2.3:a:oracle:banking_apis |
| oracle | banking digital experience | cpe:2.3:a:oracle:banking_digital_experience |
| oracle | banking enterprise default management | cpe:2.3:a:oracle:banking_enterprise_default_management |
| oracle | banking enterprise default managment | cpe:2.3:a:oracle:banking_enterprise_default_managment |
| oracle | banking party management | cpe:2.3:a:oracle:banking_party_management |
and 48 more
Affected versions
NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.
- apache commons io2.2
- apache commons io2.3
- apache commons io2.4
- apache commons io2.5
- apache commons io2.6
- debian debian linux9.0
- netapp active iq unified managerall versions
- oracle access manager11.1.2.3.0
- oracle access manager12.2.1.3.0
- oracle access manager12.2.1.4.0
- oracle agile engineering data management6.2.1.0
- oracle agile product lifecycle management9.3.6
- oracle application performance management13.4.1.0
- oracle application performance management13.5.1.0
- oracle application testing suite13.3.0.1
- oracle banking apis18.1
- oracle banking apis18.2
- oracle banking apis18.3
- oracle banking apis19.1
- oracle banking apis19.2
Versions reported by the vendor
Affected version ranges reported by the assigning authority (apache). Independent of NVD's CPE analysis and usually ahead of it.
Apache Software Foundation Apache Commons IO
- Apache Commons IO 2.2, Apache Commons IO 2.3, Apache Commons IO 2.4, Apache Commons IO 2.5, Apache Commons IO 2.6affected
Package-level exposure
OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.
| Ecosystem | Package | Affected range | Fix |
|---|---|---|---|
| Debian:12 | commons-io | before 2.8.0-1 | 2.8.0-1 |
| Debian:9 | commons-io | before 2.5-1+deb9u1 | 2.5-1+deb9u1 |
| Maven | com.cosium.vet:vet | from 1.0 · up to and including 3.22 | — |
| Maven | com.diamondq.common:common-thirdparty.jcasbin | from 1.4.0 · up to and including 1.4.0 | — |
| Maven | com.liferay:com.liferay.sass.compiler.jsass | from 1.0.1 · up to and including 1.0.1 | — |
| Maven | com.virjar:ratel-api | from 1.0.0 · up to and including 1.3.6 | — |
| Maven | commons-io:commons-io | before 2.7 | 2.7 |
| Maven | net.hasor:cobble-lang | from 4.4.1 · up to and including 4.6.2 | — |
| Maven | org.apache.commons:commons-io | from 1.3.2 · up to and including 1.3.2 | — |
| Maven | org.apache.servicemix.bundles:org.apache.servicemix.bundles.commons-io | from 1.4 · up to and including 1.5 | — |
| Maven | org.checkerframework.annotatedlib:commons-io | from 2.6 · before 2.7 | 2.7 |
| Maven | org.smartboot.servlet:servlet-core | from 0.1.9 · up to and including 0.6 | — |
| openSUSE:Leap 15.2 | apache-commons-io | before 2.6-lp152.2.3.1 | 2.6-lp152.2.3.1 |
| openSUSE:Tumbleweed | apache-commons-io | before 2.11.0-2.1 | 2.11.0-2.1 |
| Red Hat:jboss_enterprise_application_platform:7.3::el6 | eap7-apache-commons-io | before 0:2.10.0-1.redhat_00001.1.el6eap | 0:2.10.0-1.redhat_00001.1.el6eap |
| Red Hat:jboss_enterprise_application_platform:7.3::el6 | eap7-hal-console | before 0:3.2.16-1.Final_redhat_00001.1.el6eap | 0:3.2.16-1.Final_redhat_00001.1.el6eap |
| Red Hat:jboss_enterprise_application_platform:7.3::el6 | eap7-hibernate | before 0:5.3.20-4.SP2_redhat_00001.1.el6eap | 0:5.3.20-4.SP2_redhat_00001.1.el6eap |
| Red Hat:jboss_enterprise_application_platform:7.3::el6 | eap7-hibernate-core | before 0:5.3.20-4.SP2_redhat_00001.1.el6eap | 0:5.3.20-4.SP2_redhat_00001.1.el6eap |
| Red Hat:jboss_enterprise_application_platform:7.3::el6 | eap7-hibernate-entitymanager | before 0:5.3.20-4.SP2_redhat_00001.1.el6eap | 0:5.3.20-4.SP2_redhat_00001.1.el6eap |
| Red Hat:jboss_enterprise_application_platform:7.3::el6 | eap7-hibernate-envers | before 0:5.3.20-4.SP2_redhat_00001.1.el6eap | 0:5.3.20-4.SP2_redhat_00001.1.el6eap |
| Red Hat:jboss_enterprise_application_platform:7.3::el6 | eap7-hibernate-java8 | before 0:5.3.20-4.SP2_redhat_00001.1.el6eap | 0:5.3.20-4.SP2_redhat_00001.1.el6eap |
| Red Hat:jboss_enterprise_application_platform:7.3::el6 | eap7-ironjacamar | before 0:1.4.35-1.Final_redhat_00001.1.el6eap | 0:1.4.35-1.Final_redhat_00001.1.el6eap |
| Red Hat:jboss_enterprise_application_platform:7.3::el6 | eap7-ironjacamar-common-api | before 0:1.4.35-1.Final_redhat_00001.1.el6eap | 0:1.4.35-1.Final_redhat_00001.1.el6eap |
| Red Hat:jboss_enterprise_application_platform:7.3::el6 | eap7-ironjacamar-common-impl | before 0:1.4.35-1.Final_redhat_00001.1.el6eap | 0:1.4.35-1.Final_redhat_00001.1.el6eap |
+96
Same product
apache: all recordsOther highest-scoring records for the same primary product.
- CVE-2024-47554Apache Commons IO: Possible denial of service attack on untrusted input to XmlStreamReader17Monitor
Remediation
Which version to upgrade to
Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.
| Product / package | Fixed version | Source |
|---|---|---|
| debian:commons-io | 2.8.0-1 · Debian:12 | Package registry (OSV) |
| Maven:commons-io:commons-io | 2.7 | Package registry (OSV) |
| Maven:org.checkerframework.annotatedlib:commons-io | 2.7 | Package registry (OSV) |
| opensuse:apache-commons-io | 2.6-lp152.2.3.1 · openSUSE:Leap 15.2 | Package registry (OSV) |
| red hat:eap7-apache-commons-io | 0:2.10.0-1.redhat_00001.1.el6eap · Red Hat:jboss_enterprise_application_platform:7.3::el6 | Package registry (OSV) |
| red hat:eap7-hal-console | 0:3.2.16-1.Final_redhat_00001.1.el6eap · Red Hat:jboss_enterprise_application_platform:7.3::el6 | Package registry (OSV) |
| red hat:eap7-hibernate | 0:5.3.20-4.SP2_redhat_00001.1.el6eap · Red Hat:jboss_enterprise_application_platform:7.3::el6 | Package registry (OSV) |
| red hat:eap7-hibernate-core | 0:5.3.20-4.SP2_redhat_00001.1.el6eap · Red Hat:jboss_enterprise_application_platform:7.3::el6 | Package registry (OSV) |
| red hat:eap7-hibernate-entitymanager | 0:5.3.20-4.SP2_redhat_00001.1.el6eap · Red Hat:jboss_enterprise_application_platform:7.3::el6 | Package registry (OSV) |
| red hat:eap7-hibernate-envers | 0:5.3.20-4.SP2_redhat_00001.1.el6eap · Red Hat:jboss_enterprise_application_platform:7.3::el6 | Package registry (OSV) |
| red hat:eap7-hibernate-java8 | 0:5.3.20-4.SP2_redhat_00001.1.el6eap · Red Hat:jboss_enterprise_application_platform:7.3::el6 | Package registry (OSV) |
| red hat:eap7-ironjacamar | 0:1.4.35-1.Final_redhat_00001.1.el6eap · Red Hat:jboss_enterprise_application_platform:7.3::el6 | Package registry (OSV) |
| red hat:eap7-ironjacamar-common-api | 0:1.4.35-1.Final_redhat_00001.1.el6eap · Red Hat:jboss_enterprise_application_platform:7.3::el6 | Package registry (OSV) |
| red hat:eap7-ironjacamar-common-impl | 0:1.4.35-1.Final_redhat_00001.1.el6eap · Red Hat:jboss_enterprise_application_platform:7.3::el6 | Package registry (OSV) |
| red hat:eap7-ironjacamar-common-spi | 0:1.4.35-1.Final_redhat_00001.1.el6eap · Red Hat:jboss_enterprise_application_platform:7.3::el6 | Package registry (OSV) |
| red hat:eap7-ironjacamar-core-api | 0:1.4.35-1.Final_redhat_00001.1.el6eap · Red Hat:jboss_enterprise_application_platform:7.3::el6 | Package registry (OSV) |
| suse:apache-commons-io | 2.6-3.3.1 · SUSE:Linux Enterprise Module for Basesystem 15 SP2 | Package registry (OSV) |
Exploit status
Proof of concept available
A public proof of concept or detection signature exists. Exploit knowledge is out there; don't delay patching.
Evidence
- Proof-of-concept repository on GitHub ×2
Noroxi does not host or link to exploit code. Metasploit module names and Nuclei template ids are shown (names, not code); Exploit-DB entries and PoC repositories are given as counts only.
| Source | Kind | Date |
|---|---|---|
| Proof-of-concept repository on GitHub | stars:0 | 2025-07-07 |
| Proof-of-concept repository on GitHub | stars:0 | 2025-08-16 |
Research context
For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.
Timeline
From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.
- Published
- First PoC+1546 d
- TodayNov 8, 2026+2036 d
No history yet (it accumulates with the daily EPSS job).
Patch and commit links
Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.
No commit or PR link among the references.
Credits
All researchersFinders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.
No credits in the CNA record.
Variant candidates
Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.
No nightly-computed relations.
Chain candidates
An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.
—
Bug bounty scope
No known public program.
Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).
National notice (Türkiye Cybersecurity Directorate / USOM)
Official security notices citing this record; remediation advice is on the agency's page.
- TR-22-0631 · Sep 21, 2022(IBM Güvenlik Zafiyeti)
- TR-22-0105 · Feb 2, 2022(Oracle Güvenlik Zafiyeti)
- TR-21-0785 · Sep 29, 2021(IBM Güvenlik Bülteni)
- TR-21-0737 · Sep 15, 2021(RedHat Güvenlik Güncellemesi)
- TR-21-0645 · Aug 16, 2021(IBM Güvenlik Bülteni Yayınladı)
- TR-21-0606 · Aug 4, 2021(IBM Güvenlik Bülteni Yayınladı)
Technical details
Attack conditions
- Anyone who can reach it over the internet can trigger it.
- No account or password is required.
- No user action is required.
- Special conditions such as timing or configuration are required.
If successful
- Confidentiality
- low · data can be read
- Integrity
- low · data or configuration can be modified
- Availability
- none
- Attack vector
- Network
- Attack complexity
- High
- Privileges required
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality impact
- Low
- Integrity impact
- Low
- Availability impact
- None
Weakness class (CWE)
CWE-20 · Improper Input ValidationCVSS vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N
nvd-primary
Attack context
MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.
Attack patterns (CAPEC)
- Buffer Overflow via Environment VariablesCAPEC-10likelihood: High · High
- Server Side Include (SSI) InjectionCAPEC-101likelihood: High · High
- Cross Zone ScriptingCAPEC-104likelihood: Medium · High
- Command Line Execution through SQL InjectionCAPEC-108likelihood: Low · Very High
- Object Relational Mapping InjectionCAPEC-109likelihood: Low · High
- SQL Injection through SOAP Parameter TamperingCAPEC-110likelihood: High · Very High
- Double EncodingCAPEC-120likelihood: Low · Medium
- Subverting Environment Variable ValuesCAPEC-13likelihood: High · Very High
ATT&CK techniques
- Obfuscated Files or InformationT1027
- Masquerading: Invalid Code SignatureT1036.001
- Steal Web Session CookieT1539
- Subvert Trust Controls: Code SigningT1553.002
- Impair Defenses:Impair Command History LoggingT1562.003
- Hijack Execution Flow:Dynamic Linker HijackingT1574.006
- Hijack Execution Flow:Path Interception by PATH Environment VariableT1574.007
Change log
- SSVC exploitation— → none
- Fix✗ → ✓
For records you follow, these changes also arrive as notifications. →
References
Show all references (19 more)Show less
- lists.apache.org/thread.html/r0bfa8f7921abdfae788b1f076a12f73a92c93cc0a6e1083bce0027c5%40%3Cnotifications.zookeeper.apache.org%3E
- lists.apache.org/thread.html/r0d73e2071d1f1afe1a15da14c5b6feb2cf17e3871168d5a3c8451436%40%3Ccommits.pulsar.apache.org%3E
- lists.apache.org/thread.html/r1c2f4683c35696cf6f863e3c107e37ec41305b1930dd40c17260de71%40%3Ccommits.pulsar.apache.org%3E
- lists.apache.org/thread.html/r20416f39ca7f7344e7d76fe4d7063bb1d91ad106926626e7e83fb346%40%3Cnotifications.zookeeper.apache.org%3E
- lists.apache.org/thread.html/r2345b49dbffa8a5c3c589c082fe39228a2c1d14f11b96c523da701db%40%3Cnotifications.zookeeper.apache.org%3E
- lists.apache.org/thread.html/r2721aba31a8562639c4b937150897e24f78f747cdbda8641c0f659fe%40%3Cusers.kafka.apache.org%3E
- lists.apache.org/thread.html/r27b1eedda37468256c4bb768fde1e8b79b37ec975cbbfd0d65a7ac34%40%3Cdev.myfaces.apache.org%3E
- lists.apache.org/thread.html/r2bc986a070457daca457a54fe71ee09d2584c24dc262336ca32b6a19%40%3Cdev.creadur.apache.org%3E
- lists.apache.org/thread.html/r2df50af2641d38f432ef025cd2ba5858215cc0cf3fc10396a674ad2e%40%3Cpluto-scm.portals.apache.org%3E
- lists.apache.org/thread.html/r345330b7858304938b7b8029d02537a116d75265a598c98fa333504a%40%3Cdev.creadur.apache.org%3E
- lists.apache.org/thread.html/r4050f9f6b42ebfa47a98cbdee4aabed4bb5fb8093db7dbb88faceba2%40%3Ccommits.zookeeper.apache.org%3E
- lists.apache.org/thread.html/r462db908acc1e37c455e11b1a25992b81efd18e641e7e0ceb1b6e046%40%3Cnotifications.zookeeper.apache.org%3E
- lists.apache.org/thread.html/r477c285126ada5c3b47946bb702cb222ac4e7fd3100c8549bdd6d3b2%40%3Cissues.zookeeper.apache.org%3E
- lists.apache.org/thread.html/r47ab6f68cbba8e730f42c4ea752f3a44eb95fb09064070f2476bb401%40%3Cdev.creadur.apache.org%3E
- lists.apache.org/thread.html/r5149f78be265be69d34eacb4e4b0fc7c9c697bcdfa91a1c1658d717b%40%3Cissues.zookeeper.apache.org%3E
- lists.apache.org/thread.html/r523a6ffad58f71c4f3761e3cee72df878e48cdc89ebdce933be1475c%40%3Cdev.creadur.apache.org%3E
- lists.apache.org/thread.html/r808be7d93b17a7055c1981a8453ae5f0d0fce5855407793c5d0ffffa%40%3Cuser.commons.apache.org%3E
- lists.apache.org/thread.html/r8569a41d565ca880a4dee0e645dad1cd17ab4a92e68055ad9ebb7375%40%3Cdev.creadur.apache.org%3E
- lists.apache.org/thread.html/r86528f4b7d222aed7891e7ac03d69a0db2a2dfa17b86ac3470d7f374%40%3Cnotifications.zookeeper.apache.org%3E
Vendor advisories and official records. Exploit/PoC links are deliberately left out.