mwlib 0.13 through 0.13.4 has a denial of service vulnerability when parsing #iferror magic functions
Priority LOW 37CWE-755Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA.
Summary
mwlib 0.13 through 0.13.4 has a denial of service vulnerability when parsing #iferror magic functions
Why it matters now
EPSS 0.02083 81st percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
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 |
|---|---|---|---|---|---|
| python-pillow | mwlib | 0.13 through 0.13.4 (Fixed in 0.13.5) | — | No fix listed | CNA |
- mwlib Vendorpython-pillow Affected 0.13 through 0.13.4 (Fixed in 0.13.5) Fixed in — No fix listed CNA
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:pediapress:mwlib:*:*:*:*:*:*:*:* | up to 0.13.4 | Vulnerable | Pediapress |
- cpe:2.3:a:pediapress:mwlib:*:*:*:*:*:*:*:* Versions up to 0.13.4 Vulnerable ·Pediapress
Remediation
No fixed version listed by the sources yet.
Vendor assessments
Timeline
- 2026-10-02 Threatist record created from CVE-2012-1109
- 2026-10-03 Alias added: GHSA-2mmf-r54m-7994
References
More python-pillow vulnerabilities
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- TI-2026-76627 Out-of-bounds read in Pillow TIFF encoder ColorMap handling CVSS 4.0HIGH 8.8
Sources
- CVE-2012-1109 · CVE Program
- CVE-2012-1109 · NVD
- FIRST EPSS
- GHSA-2mmf-r54m-7994 · GitHub Advisory Database · CC BY 4.0
- CVE-2012-1109 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences