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Description

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.

PUBLISHED Reserved 2026-03-30 | Published 2026-03-31 | Updated 2026-03-31 | Assigner VulDB




MEDIUM: 4.8CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P
MEDIUM: 5.3CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R
MEDIUM: 5.3CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R
4.3AV:L/AC:L/Au:S/C:P/I:P/A:P/E:POC/RL:ND/RC:UR

Problem types

Double Free

Memory Corruption

Product status

2.0
affected

2.1
affected

2.2
affected

2.3
affected

2.4
affected

2.5
affected

2.6
affected

2.7
affected

2.8
affected

2.9
affected

2.10
affected

2.11
affected

2.12
affected

2.13
affected

2.14
affected

2.15
affected

2.16
affected

2.17
affected

2.18
affected

2.19
affected

2.20
affected

2.21
affected

2.22
affected

2.23
affected

2.24
affected

2.25
affected

2.26
affected

2.27
affected

2.28
affected

2.29
affected

2.30
affected

Timeline

2026-03-30:Advisory disclosed
2026-03-30:VulDB entry created
2026-03-30:VulDB entry last update

Credits

d0razi (VulDB User) reporter

VulDB coordinator

References

vuldb.com/vuln/354254 (VDB-354254 | Nothings stb Multi-frame GIF File stb_image.h stbi__load_gif_main double free) vdb-entry technical-description

vuldb.com/vuln/354254/cti (VDB-354254 | CTI Indicators (IOB, IOC, IOA)) signature permissions-required

vuldb.com/submit/780395 (Submit #780395 | nothings stb stb_image.h <= 2.30 Double Free) third-party-advisory

cve.org (CVE-2026-5186)

nvd.nist.gov (CVE-2026-5186)

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