Bundled libwebp in pywebp vulnerable
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
### Impact pywebp versions before v0.3.0 bundled libwebp binaries in wheels that are vulnerable to CVE-2023-4863. The vulnerability was a heap buffer overflow which allowed a remote attacker to perform an out of bounds memory write. ### Patches The problem has been patched upstream in libwebp 1.3.2. pywebp was updated to bundle a patched version of libwebp in v0.3.0. ### Workarounds No known workarounds without upgrading. ### References - https://www.rezilion.com/blog/rezilion-researchers-uncover-new-details-on-severity-of-google-chrome-zero-day-vulnerability-cve-2023-4863/ - https://nvd.nist.gov/vuln/detail/CVE-2023-4863
Why it matters now
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 |
|---|---|---|---|---|---|
| — | webp (PyPI) | before 0.3.0 | 0.3.0 | Patch available | GHSA-f9pm-4g9p-6vm3 |
- webp (PyPI) Vendor— Affected before 0.3.0 Fixed in 0.3.0 Patch available GHSA-f9pm-4g9p-6vm3
Remediation
- Fix · GHSA-f9pm-4g9p-6vm3 webp (PyPI) Fixed in 0.3.0 Advisory →
Timeline
- 2026-10-03 Threatist record created from GHSA-f9pm-4g9p-6vm3
References
Sources
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences