Laravel RCE vulnerability in "cookie" session driver
Priority LOW 38Published · Updated
Key facts
- Attack vector
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- Privileges required
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- User interaction
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- Attack complexity
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- Impact type
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- Confidentiality · integrity · availability
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- Fix status
- Fixed
No CVSS vector from any source. Fix status from GitHub.
Summary
Applications using the "cookie" session driver that were also exposing an encryption oracle via their application were vulnerable to remote code execution. An encryption oracle is a mechanism where arbitrary user input is encrypted and the encrypted string is later displayed or exposed to the user. This combination of scenarios lets the user generate valid Laravel signed encryption strings for any plain-text string, thus allowing them to craft Laravel session payloads when an application is using the "cookie" driver.
Why it matters now
Fix Fixed laravel/framework (Packagist): 6.18.31, 7.22.4
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 |
|---|---|---|---|---|---|
| — | laravel/framework (Packagist) | 4.1.0 to before 6.18.31 | 6.18.31 | Patch available | GHSA-qm5c-m76r-2hfr |
| — | laravel/framework (Packagist) | 7.0.0 to before 7.22.4 | 7.22.4 | Patch available | GHSA-qm5c-m76r-2hfr |
- laravel/framework (Packagist) Vendor— Affected 4.1.0 to before 6.18.31 Fixed in 6.18.31 Patch available GHSA-qm5c-m76r-2hfr
- laravel/framework (Packagist) Vendor— Affected 7.0.0 to before 7.22.4 Fixed in 7.22.4 Patch available GHSA-qm5c-m76r-2hfr
Remediation
- Fix · GHSA-qm5c-m76r-2hfr laravel/framework (Packagist) Fixed in 6.18.31 Advisory →
- Fix · GHSA-qm5c-m76r-2hfr laravel/framework (Packagist) Fixed in 7.22.4 Advisory →
Timeline
- 2026-10-03 Threatist record created from GHSA-qm5c-m76r-2hfr
References
Sources
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