org.slf4j.ext.EventData in the slf4j-ext module in QOS.CH SLF4J before 1.8.0-beta2 allows remote attackers to bypass intended access restric
org.slf4j.ext.EventData in the slf4j-ext module in QOS.CH SLF4J before 1.8.0-beta2 allows remote attackers to bypass intended access restrictions via crafted data. EventData in the slf4j-ext module in QOS.CH SLF4J, has been fixed in SLF4J versions 1.7.26 later and in the 2.0.x series.
- Published
- Mar 20, 2018
- Updated
- Jun 16, 2026
- EPSS
- 14.7% · 97th percentile
- CWE
- —
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Report tools
Action score
43
Plan
Add it to your regular patch cycle.
- CVSS
- 39 / 40 · 9.8 / 10
- CISA KEV
- 0 / 30 · Not listed
- EPSS
- 4 / 30 · 14.7%
Affected systems
| Vendor | Product | CPE |
|---|---|---|
| qos | slf4j | cpe:2.3:a:qos:slf4j |
| redhat | jboss enterprise application platform | cpe:2.3:a:redhat:jboss_enterprise_application_platform |
| redhat | enterprise linux | cpe:2.3:o:redhat:enterprise_linux |
| redhat | virtualization | cpe:2.3:a:redhat:virtualization |
| redhat | virtualization host | cpe:2.3:a:redhat:virtualization_host |
| redhat | enterprise linux server | cpe:2.3:o:redhat:enterprise_linux_server |
| redhat | enterprise linux desktop | cpe:2.3:o:redhat:enterprise_linux_desktop |
| redhat | enterprise linux eus | cpe:2.3:o:redhat:enterprise_linux_eus |
| redhat | enterprise linux server aus | cpe:2.3:o:redhat:enterprise_linux_server_aus |
| redhat | enterprise linux server tus | cpe:2.3:o:redhat:enterprise_linux_server_tus |
| redhat | enterprise linux workstation | cpe:2.3:o:redhat:enterprise_linux_workstation |
| oracle | goldengate application adapters | cpe:2.3:a:oracle:goldengate_application_adapters |
and 2 more
Affected versions
NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.
- oracle goldengate application adapters12.3.2.1.0
- oracle goldengate stream analyticsbefore 19.1.0.0.1
- oracle utilities framework4.2.0.2.0
- oracle utilities framework4.2.0.3.0
- oracle utilities framework4.3.0.2.0
- oracle utilities framework4.3.0.3.0
- oracle utilities framework4.3.0.4.0
- oracle utilities framework4.3.0.5.0
- oracle utilities framework4.3.0.6.0
- oracle utilities framework4.4.0.0.0
- qos slf4jbefore 1.7.26
- qos slf4j1.8.0
- redhat enterprise linux desktop7.0
- redhat enterprise linux eus7.4
- redhat enterprise linux eus7.5
- redhat enterprise linux eus7.6
- redhat enterprise linux eus7.7
- redhat enterprise linux server7.0
- redhat enterprise linux server aus7.4
- redhat enterprise linux server aus7.6
Package-level exposure
OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.
| Ecosystem | Package | Affected range | Fix |
|---|---|---|---|
| Debian:12 | libslf4j-java | before 1.7.25-3 | 1.7.25-3 |
| Maven | org.slf4j:slf4j-ext | from 1.8.0-alpha0 · before 1.8.0-beta4 | 1.8.0-beta4 |
| Maven | org.slf4j:slf4j-ext | before 1.7.26 | 1.7.26 |
| openSUSE:Tumbleweed | slf4j | before 1.7.30-2.5 | 1.7.30-2.5 |
| Red Hat:enterprise_linux:7::client | slf4j | before 0:1.7.4-4.el7_4 | 0:1.7.4-4.el7_4 |
| Red Hat:enterprise_linux:7::client | slf4j-javadoc | before 0:1.7.4-4.el7_4 | 0:1.7.4-4.el7_4 |
| Red Hat:enterprise_linux:7::client | slf4j-manual | before 0:1.7.4-4.el7_4 | 0:1.7.4-4.el7_4 |
| Red Hat:enterprise_linux:7::hypervisor | rhvm-appliance | before 2:4.2-20180504.0.el7 | 2:4.2-20180504.0.el7 |
| Red Hat:jboss_enterprise_application_platform:6::el5 | codehaus-jackson | before 0:1.9.9-12.redhat_6.1.ep6.el5 | 0:1.9.9-12.redhat_6.1.ep6.el5 |
| Red Hat:jboss_enterprise_application_platform:6::el5 | codehaus-jackson-core-asl | before 0:1.9.9-12.redhat_6.1.ep6.el5 | 0:1.9.9-12.redhat_6.1.ep6.el5 |
| Red Hat:jboss_enterprise_application_platform:6::el5 | codehaus-jackson-jaxrs | before 0:1.9.9-12.redhat_6.1.ep6.el5 | 0:1.9.9-12.redhat_6.1.ep6.el5 |
| Red Hat:jboss_enterprise_application_platform:6::el5 | codehaus-jackson-mapper-asl | before 0:1.9.9-12.redhat_6.1.ep6.el5 | 0:1.9.9-12.redhat_6.1.ep6.el5 |
| Red Hat:jboss_enterprise_application_platform:6::el5 | codehaus-jackson-xc | before 0:1.9.9-12.redhat_6.1.ep6.el5 | 0:1.9.9-12.redhat_6.1.ep6.el5 |
| Red Hat:jboss_enterprise_application_platform:6::el5 | hornetq | before 0:2.3.25-26.SP24_redhat_1.1.ep6.el5 | 0:2.3.25-26.SP24_redhat_1.1.ep6.el5 |
| Red Hat:jboss_enterprise_application_platform:6::el5 | jboss-as-appclient | before 0:7.5.20-1.Final_redhat_1.1.ep6.el5 | 0:7.5.20-1.Final_redhat_1.1.ep6.el5 |
| Red Hat:jboss_enterprise_application_platform:6::el5 | jboss-as-cli | before 0:7.5.20-1.Final_redhat_1.1.ep6.el5 | 0:7.5.20-1.Final_redhat_1.1.ep6.el5 |
| Red Hat:jboss_enterprise_application_platform:6::el5 | jboss-as-client-all | before 0:7.5.20-1.Final_redhat_1.1.ep6.el5 | 0:7.5.20-1.Final_redhat_1.1.ep6.el5 |
| Red Hat:jboss_enterprise_application_platform:6::el5 | jboss-as-clustering | before 0:7.5.20-1.Final_redhat_1.1.ep6.el5 | 0:7.5.20-1.Final_redhat_1.1.ep6.el5 |
| Red Hat:jboss_enterprise_application_platform:6::el5 | jboss-as-cmp | before 0:7.5.20-1.Final_redhat_1.1.ep6.el5 | 0:7.5.20-1.Final_redhat_1.1.ep6.el5 |
| Red Hat:jboss_enterprise_application_platform:6::el5 | jboss-as-configadmin | before 0:7.5.20-1.Final_redhat_1.1.ep6.el5 | 0:7.5.20-1.Final_redhat_1.1.ep6.el5 |
| Red Hat:jboss_enterprise_application_platform:6::el5 | jboss-as-connector | before 0:7.5.20-1.Final_redhat_1.1.ep6.el5 | 0:7.5.20-1.Final_redhat_1.1.ep6.el5 |
| Red Hat:jboss_enterprise_application_platform:6::el5 | jboss-as-controller | before 0:7.5.20-1.Final_redhat_1.1.ep6.el5 | 0:7.5.20-1.Final_redhat_1.1.ep6.el5 |
| Red Hat:jboss_enterprise_application_platform:6::el5 | jboss-as-controller-client | before 0:7.5.20-1.Final_redhat_1.1.ep6.el5 | 0:7.5.20-1.Final_redhat_1.1.ep6.el5 |
| Red Hat:jboss_enterprise_application_platform:6::el5 | jboss-as-core-security | before 0:7.5.20-1.Final_redhat_1.1.ep6.el5 | 0:7.5.20-1.Final_redhat_1.1.ep6.el5 |
+96
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:libslf4j-java | 1.7.25-3 · Debian:12 | Package registry (OSV) |
| Maven:org.slf4j:slf4j-ext | 1.7.26 | Package registry (OSV) |
| Maven:org.slf4j:slf4j-ext | 1.8.0-beta4 | Package registry (OSV) |
| opensuse:slf4j | 1.7.30-2.5 · openSUSE:Tumbleweed | Package registry (OSV) |
| red hat:rh-maven35-jcl-over-slf4j | 0:1.7.25-1.3.el7 · Red Hat:rhel_software_collections:3::el7 | Package registry (OSV) |
| red hat:rh-maven35-jul-to-slf4j | 0:1.7.25-1.3.el7 · Red Hat:rhel_software_collections:3::el7 | Package registry (OSV) |
| red hat:rh-maven35-log4j-over-slf4j | 0:1.7.25-1.3.el7 · Red Hat:rhel_software_collections:3::el7 | Package registry (OSV) |
| red hat:rh-maven35-slf4j | 0:1.7.25-1.3.el7 · Red Hat:rhel_software_collections:3::el7 | Package registry (OSV) |
| red hat:rh-maven35-slf4j-ext | 0:1.7.25-1.3.el7 · Red Hat:rhel_software_collections:3::el7 | Package registry (OSV) |
| red hat:rh-maven35-slf4j-javadoc | 0:1.7.25-1.3.el7 · Red Hat:rhel_software_collections:3::el7 | Package registry (OSV) |
| red hat:rh-maven35-slf4j-jcl | 0:1.7.25-1.3.el7 · Red Hat:rhel_software_collections:3::el7 | Package registry (OSV) |
| red hat:rh-maven35-slf4j-jdk14 | 0:1.7.25-1.3.el7 · Red Hat:rhel_software_collections:3::el7 | Package registry (OSV) |
| red hat:rh-maven35-slf4j-log4j12 | 0:1.7.25-1.3.el7 · Red Hat:rhel_software_collections:3::el7 | Package registry (OSV) |
| red hat:rh-maven35-slf4j-manual | 0:1.7.25-1.3.el7 · Red Hat:rhel_software_collections:3::el7 | Package registry (OSV) |
| red hat:rh-maven35-slf4j-sources | 0:1.7.25-1.3.el7 · Red Hat:rhel_software_collections:3::el7 | Package registry (OSV) |
| red hat:slf4j | 0:1.7.4-4.el7_4 · Red Hat:enterprise_linux:7::client | Package registry (OSV) |
| suse:slf4j | 1.7.12-3.3.1 · SUSE:HPE Helion OpenStack 8 | Package registry (OSV) |
Exploit status
No known public exploit
No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.
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.
No dated events beyond publication.
FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).
Patch and commit links
Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.
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).
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.
- No special conditions are required; it is repeatable.
If successful
- Confidentiality
- high · data can be read
- Integrity
- high · data or configuration can be modified
- Availability
- high · the service can be disrupted
- Attack vector
- Network
- Attack complexity
- Low
- Privileges required
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality impact
- High
- Integrity impact
- High
- Availability impact
- High
Weakness class (CWE)
—
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
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.
MITRE has no CAPEC/ATT&CK mapping for this CWE.
Noroxi analysis
No Noroxi analysis for this record yet
We don't hand-write analysis for all 385,000+ vulnerabilities; that wouldn't be honest. For notable, high-impact vulnerabilities our team writes the mechanism, detection and remediation steps.
We use this product, ask for helpChange log
- Fix✗ → ✓
For records you follow, these changes also arrive as notifications. →
References
- www.securityfocus.com/bid/103737
- www.securitytracker.com/id/1040627
- access.redhat.com/errata/RHSA-2018:0582
- access.redhat.com/errata/RHSA-2018:0592
- access.redhat.com/errata/RHSA-2018:0627
- access.redhat.com/errata/RHSA-2018:0628
- access.redhat.com/errata/RHSA-2018:0629
- access.redhat.com/errata/RHSA-2018:0630
- access.redhat.com/errata/RHSA-2018:1247
- access.redhat.com/errata/RHSA-2018:1248
- access.redhat.com/errata/RHSA-2018:1249
- access.redhat.com/errata/RHSA-2018:1251
- access.redhat.com/errata/RHSA-2018:1323
- access.redhat.com/errata/RHSA-2018:1447
- access.redhat.com/errata/RHSA-2018:1448
- access.redhat.com/errata/RHSA-2018:1449
- access.redhat.com/errata/RHSA-2018:1450
- access.redhat.com/errata/RHSA-2018:1451
- access.redhat.com/errata/RHSA-2018:1525
- access.redhat.com/errata/RHSA-2018:1575
Vendor advisories and official records. Exploit/PoC links are deliberately left out.