CVE-2026-6491 | libvips up to 8.18.2 nip2 vips7compat.c im_minpos_vec n heap-based overflow (Issue 4965)

VDB-358035 · CVE-2026-6491 · ISSUE 4965 LIBVIPS UP TO 8.18.2 NIP2 VIPS7COMPAT.C IM_MINPOS_VEC N HEAP-BASED OVERFLOW HISTORYDIFFRELATEJSONXMLCTI CVSS Meta Temp Score Current Exploit Price (≈) CTI Interest Score 4.8 $0-$5k 1.16+ Summaryinfo A vulnerability classified as problematic has been found in libvips up to 8.18.2. The impacted element is the function im_minpos_vec of the file libvips/deprecated/vips7compat.c of the component nip2 Handler. Performing a manipulation of the argument n results in heap-based overflow. This vulnerability is known as CVE-2026-6491. Attacking locally is a requirement. Furthermore, an exploit is available. The vendor confirms that they will "be removing the deprecated area in libvips 8.19". Detailsinfo A vulnerability was found in libvips up to 8.18.2. It has been classified as problematic. This affects the function im_minpos_vec of the file libvips/deprecated/vips7compat.c of the component nip2 Handler. The manipulation of the argument n with an unknown input leads to a heap-based overflow vulnerability. CWE is classifying the issue as 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(). This is going to have an impact on confidentiality, integrity, and availability. It is possible to read the advisory at github.com. This vulnerability is uniquely identified as CVE-2026-6491. The exploitability is told to be easy. Attacking locally is a requirement. Technical details and a public exploit are known. The exploit is shared for download at github.com. It is declared as proof-of-concept. The vendor confirms that they will "be removing the deprecated area in libvips 8.19". There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product. Productinfo Name libvips Version 8.18.0 8.18.1 8.18.2 Website Product: https://github.com/libvips/libvips/ 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 Download: 🔒 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 04/17/2026 Advisory disclosed 04/17/2026 +0 days VulDB entry created 04/17/2026 +0 days VulDB entry last update Sourcesinfo Product: github.com Advisory: 4965 Status: Confirmed Confirmation: 🔒 CVE: CVE-2026-6491 (🔒) GCVE (CVE): GCVE-0-2026-6491 GCVE (VulDB): GCVE-100-358035 scip Labs: https://www.scip.ch/en/?labs.20161013 Entryinfo Created: 04/17/2026 09:27 Changes: 04/17/2026 09:27 (59) Complete: 🔍 Submitter: biniam Cache ID: 99:B0A:101 Submitinfo Accepted Submit #786994: libvips 8.19.0 Out-of-Bounds Read (by biniam) Discussion No comments yet. Languages: en. Please log in to comment. ◂ PreviousOverviewNext ▸