CVE-2019-10912: In Symfony before 2.8.50, 3.x before 3.4.26, 4.x before 4.1.12, and 4.2.x before 4.2.7, it is possible to cache objects that may contain bad
Noroxi assessment
Priority: Monitor (action score 29/100)
- The sources we track (CISA KEV, Exploit-DB, Metasploit, Nuclei, GitHub) show no public exploit code or exploitation in the wild.
- Probability of exploitation in the next 30 days: 2.2% (FIRST EPSS); higher than 82.9% of all records.
- Anyone who can reach it over the internet can trigger it. A low-privileged account is enough. No user action is required. No special conditions are required; it is repeatable.
- Fixed version: symfony (Debian:12) 3.4.22+dfsg-2; symfony (Debian:9) 2.8.7+dfsg-1.3+deb9u2; symfony/cache (Packagist) 3.4.26, 4.1.12, 4.2.7.
Low priority for now. Upgrade to symfony (Debian:12) 3.4.22+dfsg-2; symfony (Debian:9) 2.8.7+dfsg-1.3+deb9u2; symfony/cache (Packagist) 3.4.26, 4.1.12, 4.2.7 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 Symfony before 2.8.50, 3.x before 3.4.26, 4.x before 4.1.12, and 4.2.x before 4.2.7, it is possible to cache objects that may contain bad user input. On serialization or unserialization, this could result in the deletion of files that the current user has access to. This is related to symfony/cache and symfony/phpunit-bridge.
- Published
- May 16, 2019
- Updated
- Jun 16, 2026
- EPSS
- 2.2% · 82th percentile
- CWE
- CWE-502
Report tools
Action score
29
Monitor
Low priority for now.
- CVSS
- 28 / 40 · 7.1 / 10
- CISA KEV
- 0 / 30 · Not listed
- EPSS
- 1 / 30 · 2.2%
Get told when this record changes
- Not in KEV: no record of exploitation in the wild
- No public exploit code on record
- 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 |
|---|---|---|
| sensiolabs | symfony | cpe:2.3:a:sensiolabs:symfony |
Affected versions
NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.
- sensiolabs symfony2.8.0 and later · before 2.8.50
- sensiolabs symfony3.4.0 and later · before 3.4.26
- sensiolabs symfony4.1.0 and later · before 4.1.12
- sensiolabs symfony4.2.0 and later · before 4.2.7
Package-level exposure
OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.
| Ecosystem | Package | Affected range | Fix |
|---|---|---|---|
| Debian:12 | symfony | before 3.4.22+dfsg-2 | 3.4.22+dfsg-2 |
| Debian:9 | symfony | before 2.8.7+dfsg-1.3+deb9u2 | 2.8.7+dfsg-1.3+deb9u2 |
| Packagist | symfony/cache | from 3.1.0 · before 3.4.26 | 3.4.26 |
| Packagist | symfony/cache | from 4.0.0 · before 4.1.12 | 4.1.12 |
| Packagist | symfony/cache | from 4.2.0 · before 4.2.7 | 4.2.7 |
| Packagist | symfony/phpunit-bridge | from 2.8.0 · before 2.8.50 | 2.8.50 |
| Packagist | symfony/phpunit-bridge | from 3.0.0 · before 3.4.26 | 3.4.26 |
| Packagist | symfony/phpunit-bridge | from 4.0.0 · before 4.1.12 | 4.1.12 |
| Packagist | symfony/phpunit-bridge | from 4.2.0 · before 4.2.7 | 4.2.7 |
| Packagist | symfony/symfony | from 2.8.0 · before 2.8.50 | 2.8.50 |
| Packagist | symfony/symfony | from 3.0.0 · before 3.4.26 | 3.4.26 |
| Packagist | symfony/symfony | from 4.0.0 · before 4.1.12 | 4.1.12 |
| Packagist | symfony/symfony | from 4.2.0 · before 4.2.7 | 4.2.7 |
| Packagist | typo3/cms | from 9.0.0 · before 9.5.8 | 9.5.8 |
| Packagist | typo3/cms-core | from 9.0.0 · before 9.5.8 | 9.5.8 |
Same product
sensiolabs: all recordsOther highest-scoring records for the same primary product.
- CVE-2019-18889An issue was discovered in Symfony 3.4.0 through 3.4.34, 4.2.0 through 4.2.11, and 4.3.0 through 4.3.7.49Plan
- CVE-2018-14773An issue was discovered in Http Foundation in Symfony 2.7.0 through 2.7.48, 2.8.0 through 2.8.43, 3.3.0 through 3.3.17, 3.4.0 through 3.4.1343Plan
- CVE-2019-10910In Symfony before 2.7.51, 2.8.x before 2.8.50, 3.x before 3.4.26, 4.x before 4.1.12, and 4.2.x before 4.2.7, when service ids allow user inp41Plan
Published before and after this one in the same product
- ← EarlierCVE-2019-10909May 16, 2019 · In Symfony before 2.7.51, 2.8.x before 2.8.50, 3.x before 3.4.26, 4.x before 4.1.12, and 4.2.x before 4.2.7, validation messages are not esc21Monitor
- ← EarlierCVE-2019-10911May 16, 2019 · In Symfony before 2.7.51, 2.8.x before 2.8.50, 3.x before 3.4.26, 4.x before 4.1.12, and 4.2.x before 4.2.7, a vulnerability would allow an 30Monitor
- Later →CVE-2019-10913May 16, 2019 · In Symfony before 2.7.51, 2.8.x before 2.8.50, 3.x before 3.4.26, 4.x before 4.1.12, and 4.2.x before 4.2.7, HTTP Methods provided as verbs 40Plan
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:symfony | 3.4.22+dfsg-2 · Debian:12 | Package registry (OSV) |
| Packagist:symfony/cache | 3.4.26 | Package registry (OSV) |
| Packagist:symfony/cache | 4.1.12 | Package registry (OSV) |
| Packagist:symfony/cache | 4.2.7 | Package registry (OSV) |
| Packagist:symfony/phpunit-bridge | 2.8.50 | Package registry (OSV) |
| Packagist:symfony/phpunit-bridge | 3.4.26 | Package registry (OSV) |
| Packagist:symfony/phpunit-bridge | 4.1.12 | Package registry (OSV) |
| Packagist:symfony/phpunit-bridge | 4.2.7 | Package registry (OSV) |
| Packagist:symfony/symfony | 2.8.50 | Package registry (OSV) |
| Packagist:symfony/symfony | 3.4.26 | Package registry (OSV) |
| Packagist:symfony/symfony | 4.1.12 | Package registry (OSV) |
| Packagist:symfony/symfony | 4.2.7 | Package registry (OSV) |
| Packagist:typo3/cms | 9.5.8 | Package registry (OSV) |
| Packagist:typo3/cms-core | 9.5.8 | 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.
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.
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.
- A low-privileged account is enough.
- No user action is required.
- No special conditions are required; it is repeatable.
If successful
- Confidentiality
- low · data can be read
- Integrity
- high · data or configuration can be modified
- Availability
- none
- Attack vector
- Network
- Attack complexity
- Low
- Privileges required
- Low
- User interaction
- None
- Scope
- Unchanged
- Confidentiality impact
- Low
- Integrity impact
- High
- Availability impact
- None
Weakness class (CWE)
CWE-502 · Deserialization of Untrusted DataCVSS vector
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:N
nvd-primary
Root cause
Data received over the network is deserialized into the language’s native object format without verifying its source. Code paths inside the object can be triggered during deserialization.
The bug in code
The whole CWE-502 classA representative example of this vulnerability class. Not the vendor's source code; it shows the faulty pattern and its fix.
Vulnerable
payload = sock.recv(65536)
job = pickle.loads(payload)Fixed
payload = sock.recv(65536)
if not hmac.compare_digest(sign(payload), header_sig):
raise PermissionError("invalid signature")
job = JobSchema.validate(json.loads(payload))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)
ATT&CK techniques
—
Change log
- Fix✗ → ✓
For records you follow, these changes also arrive as notifications. →
References
Show all references (12 more)Show less
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/42UEKSLKJB72P24JBWVN6AADHLMYSUQD/
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6QEAOZXVNDA63537A2OIH4QE77EKZR5O/
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BAC2TQVEEH5FDJSSWPM2BCRIPTCOEMMO/
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BHHIG4GMSGEIDT3RITSW7GJ5NT6IBHXU/
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/LFARAUAWZE4UDSKVDWRD35D75HI5UGSD/
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/MDSM576XIOVXVCMHNJHLBBZBTOD62LDA/
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RTJGZJLPG5FHKFH7KNAKNTWOGBB6LXAL/
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZLOZX5BZMQKWG7PJRQL6MB5CAMKBQAWD/
- seclists.org/bugtraq/2019/May/21
- symfony.com/blog/cve-2019-10912-prevent-destructors-with-side-effects-from-being-unserialized
- typo3.org/security/advisory/typo3-core-sa-2019-016/
- www.debian.org/security/2019/dsa-4441
Vendor advisories and official records. Exploit/PoC links are deliberately left out.