Monolog Header injection in NativeMailerHandler
Priority LOW 38CWE-74Published · Updated
Key facts
- Attack vector
- —
- Privileges required
- —
- User interaction
- —
- Attack complexity
- —
- Impact type
- —
- Confidentiality · integrity · availability
- —
- Fix status
- Fixed
No CVSS vector from any source. Fix status from GitHub.
Summary
A header injection vulnerability has been identified in the NativeMailerHandler of the Monolog library. This vulnerability may allow an attacker to manipulate email headers when log messages are sent via email.
Why it matters now
Fix Fixed monolog/monolog (Packagist): 1.12.0
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | monolog/monolog (Packagist) | 1.8.0 to before 1.12.0 | 1.12.0 | Patch available | GHSA-f57v-q966-7fh6 |
- monolog/monolog (Packagist) Vendor— Affected 1.8.0 to before 1.12.0 Fixed in 1.12.0 Patch available GHSA-f57v-q966-7fh6
Remediation
- Fix · GHSA-f57v-q966-7fh6 monolog/monolog (Packagist) Fixed in 1.12.0 Advisory →
Timeline
- 2026-10-03 Threatist record created from GHSA-f57v-q966-7fh6
References
Other 5
- https://github.com/Seldaek/monolog/issues/458
- https://github.com/Seldaek/monolog/pull/448#issuecomment-68208704
- https://github.com/Seldaek/monolog/commit/515a096c864b00b3967f7f601680f85d4a2e4001
- https://github.com/FriendsOfPHP/security-advisories/blob/master/monolog/monolog/2014-12-29-1.yaml
- https://github.com/Seldaek/monolog
Sources
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences