GPAC URL url.c gf_url_concatenate_ex heap-based overflow
Key facts
- Attack vector
- Local
- Privileges required
- Low
- User interaction
- Passive
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- —
- Confidentiality · integrity · availability
- Low · Low · Low
- Fix status
- Fixed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA.
Summary
A vulnerability has been found in GPAC up to f1219cde. This issue affects the function gf_url_concatenate_ex of the file utils/url.c of the component URL Handler. The manipulation leads to heap-based buffer overflow. An attack has to be approached locally. Upgrading to version abi-16.23 is capable of addressing this issue. The identifier of the patch is afca1f1181668d85941d51ed1adf647807d5d975. It is advisable to upgrade the affected component.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
Remediation
- Fix · CNA GPAC Fixed in abi-16.23
Timeline
- 2026-10-02 Threatist record created from CVE-2026-91088
- 2026-10-03 Alias added: GHSA-g97h-4r58-8hcm
References
Sources
- CVE-2026-91088 · CVE Program
- CVE-2026-91088 · NVD
- FIRST EPSS
- GHSA-g97h-4r58-8hcm · GitHub Advisory Database · CC BY 4.0
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