CVE-2026-5186Nothings stb Multi-frame GIF File stb_image.h stbi__load_gif_main double free
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A weakness has been identified in Nothings stb up to 2.30. This impacts the function stbi__load_gif_main of the file stb_image.h of the component Multi-frame GIF File Handler. This manipulation causes double free. The attack requires local access. The exploit has been made available to the public and could be used for attacks. The vendor was contacted early about this disclosure but did not respond in any way.
- CVSS
- 5.3 MEDIUM (v3.1, CNA)CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R
- Weakness (CWE)
- CWE-415, CWE-119
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- VulDB
- NVD analysis
- Deferred
- Record last updated
- Mar 31, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Nothings stb nothings:stb (from the name) | 2.0; 2.1; 2.2; 2.3; 2.4; 2.5; 2.6; 2.7; and 23 more ranges | CNA record |
References
- https://vuldb.com/vuln/354254vdb-entry, technical-description
- https://vuldb.com/vuln/354254/ctisignature, permissions-required
- https://vuldb.com/submit/780395third-party-advisory
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.