PT-2026-29203 · Unknown · Nothings Stb

D0Razi + 1 · Published 2026-03-31 · Updated 2026-03-31 · CVE-2026-5186

Positive Technologies (AI Summary)

CVSS v3.1

5.3

Medium

Base vector

AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L

Name of the Vulnerable Software and Affected Versions Nothings stb versions prior to 2.31

Description A flaw exists in Nothings stb up to version 2.30 related to the Multi-frame GIF File Handler component. Specifically, the issue resides within the stbi load gif main function of the stb image.h file and results in a double free condition. Local access is required for exploitation. The exploit has been publicly released. The vendor was notified but did not provide a response.

Recommendations Update Nothings stb to version 2.31 or later. As a temporary workaround, consider restricting access to the stbi load gif main function until a patch is available.

Fix

Double Free

Buffer Overflow

Weakness Enumeration

CWE-415

CWE-119

Related Identifiers

CVE-2026-5186

Affected Products

Nothings Stb

References · 10

• https://nvd.nist.gov/vuln/detail/CVE-2026-5186 · Security Note
• https://security-tracker.debian.org/tracker/CVE-2026-5186 · Vendor Advisory
• https://ubuntu.com/security/CVE-2026-5186 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2026-5186 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2026-5186 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2026-5186 · Security Note
• https://twitter.com/CVEnew/status/2038916018798804997 · Twitter Post
• https://vuldb.com/vuln/354254/cti · Note
• https://vuldb.com/vuln/354254 · Note
• https://vuldb.com/submit/780395 · Note