CVE-2026-5185 | Nothings stb_image up to 2.30 Multi-frame GIF File stb_image.h stbi__gif_load_next heap-based overflow

VDB-354253 · CVE-2026-5185 · GCVE-100-354253 NOTHINGS STB_IMAGE UP TO 2.30 MULTI-FRAME GIF FILE STB_IMAGE.H STBI__GIF_LOAD_NEXT HEAP-BASED OVERFLOW HISTORYDIFFRELATEJSONXMLCTI CVSS Meta Temp Score Current Exploit Price (≈) CTI Interest Score 4.8 $0-$5k 1.27+ Summaryinfo A vulnerability marked as critical has been reported in Nothings stb_image up to 2.30. This impacts the function stbi__gif_load_next of the file stb_image.h of the component Multi-frame GIF File Handler. This manipulation causes heap-based overflow. This vulnerability appears as CVE-2026-5185. The attack requires local access. In addition, an exploit is available. The vendor was contacted early about this disclosure but did not respond in any way. Detailsinfo A vulnerability has been found in Nothings stb_image up to 2.30 and classified as critical. Affected by this vulnerability is the function stbi__gif_load_next of the file stb_image.h of the component Multi-frame GIF File Handler. The manipulation with an unknown input leads to a heap-based overflow vulnerability. The CWE definition for the vulnerability is CWE-122. A heap overflow condition is a buffer overflow, where the buffer that can be overwritten is allocated in the heap portion of memory, generally meaning that the buffer was allocated using a routine such as malloc(). As an impact it is known to affect confidentiality, integrity, and availability. This vulnerability is known as CVE-2026-5185. The exploitation appears to be easy. An attack has to be approached locally. Technical details and also a public exploit are known. It is declared as proof-of-concept. The vendor was contacted early about this disclosure but did not respond in any way. There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product. Productinfo Vendor Nothings Name stb_image Version 2.0 2.1 2.2 2.3 2.4 2.5 2.6 2.7 2.8 2.9 2.10 2.11 2.12 2.13 2.14 2.15 2.16 2.17 2.18 2.19 2.20 2.21 2.22 2.23 2.24 2.25 2.26 2.27 2.28 2.29 2.30 CPE 2.3info 🔒 🔒 🔒 CPE 2.2info 🔒 🔒 🔒 CVSSv4info VulDB Vector: 🔒 VulDB Reliability: 🔍 CVSSv3info VulDB Meta Base Score: 5.3 VulDB Meta Temp Score: 4.8 VulDB Base Score: 5.3 VulDB Temp Score: 4.8 VulDB Vector: 🔒 VulDB Reliability: 🔍 CVSSv2info Vector Complexity Authentication Confidentiality Integrity Availability Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock VulDB Base Score: 🔒 VulDB Temp Score: 🔒 VulDB Reliability: 🔍 Exploitinginfo Class: Heap-based overflow CWE: CWE-122 / CWE-119 CAPEC: 🔒 ATT&CK: 🔒 Physical: Partially Local: Yes Remote: No Availability: 🔒 Access: Public Status: Proof-of-Concept Price Prediction: 🔍 Current Price Estimation: 🔒 0-Day Unlock Unlock Unlock Unlock Today Unlock Unlock Unlock Unlock Threat Intelligenceinfo Interest: 🔍 Active Actors: 🔍 Active APT Groups: 🔍 Countermeasuresinfo Recommended: no mitigation known Status: 🔍 0-Day Time: 🔒 Timelineinfo 03/30/2026 Advisory disclosed 03/30/2026 +0 days VulDB entry created 03/30/2026 +0 days VulDB entry last update Sourcesinfo Status: Not defined CVE: CVE-2026-5185 (🔒) GCVE (CVE): GCVE-0-2026-5185 GCVE (VulDB): GCVE-100-354253 scip Labs: https://www.scip.ch/en/?labs.20161013 Entryinfo Created: 03/30/2026 21:23 Changes: 03/30/2026 21:23 (55) Complete: 🔍 Submitter: d0razi Cache ID: 99:C1B:101 Submitinfo Accepted Submit #780390: nothings stb stb_image.h <= 2.30 Heap-based Buffer Overflow (by d0razi) Discussion No comments yet. Languages: en. Please log in to comment. ◂ PreviousOverviewNext ▸