CVE-2026-41082 | OCaml opam up to 2.5.0 Destination install path traversal (EUVD-2026-23288)

VDB-357962 · CVE-2026-41082 · EUVD-2026-23288 OCAML OPAM UP TO 2.5.0 DESTINATION INSTALL PATH TRAVERSAL HISTORYDIFFRELATEJSONXMLCTI CVSS Meta Temp Score Current Exploit Price (≈) CTI Interest Score 6.2 $0-$5k 4.37 Summaryinfo A vulnerability labeled as problematic has been found in OCaml opam up to 2.5.0. Affected by this vulnerability is an unknown functionality of the component Destination Handler. Such manipulation of the argument install leads to path traversal. This vulnerability is uniquely identified as CVE-2026-41082. Local access is required to approach this attack. No exploit exists. The affected component should be upgraded. Detailsinfo A vulnerability was found in OCaml opam up to 2.5.0 and classified as problematic. Affected by this issue is an unknown part of the component Destination Handler. The manipulation of the argument install with an unknown input leads to a path traversal vulnerability. Using CWE to declare the problem leads to CWE-24. The product uses external input to construct a pathname that should be within a restricted directory, but it does not properly neutralize "../" sequences that can resolve to a location that is outside of that directory. Impacted is confidentiality, integrity, and availability. CVE summarizes: In OCaml opam before 2.5.1, a .install field containing a destination filepath can use ../ to reach a parent directory. The advisory is available at github.com. This vulnerability is handled as CVE-2026-41082 since 04/16/2026. The exploitation is known to be easy. Local access is required to approach this attack. Technical details are known, but there is no available exploit. This vulnerability is assigned to T1006 by the MITRE ATT&CK project. Upgrading to version 2.5.1 eliminates this vulnerability. The upgrade is hosted for download at github.com. Applying a patch is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version. The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2026-23288). Productinfo Vendor OCaml Name opam Version 2.0 2.1 2.2 2.3 2.4 2.5.0 Website Product: https://github.com/ocaml/opam/ CPE 2.3info 🔒 🔒 🔒 CPE 2.2info 🔒 🔒 🔒 CVSSv4info VulDB Vector: 🔒 VulDB Reliability: 🔍 CVSSv3info VulDB Meta Base Score: 6.3 VulDB Meta Temp Score: 6.2 VulDB Base Score: 5.3 VulDB Temp Score: 5.1 VulDB Vector: 🔒 VulDB Reliability: 🔍 CNA Base Score: 7.3 CNA Vector (MITRE): 🔒 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: Path traversal CWE: CWE-24 / CWE-23 / CWE-22 CAPEC: 🔒 ATT&CK: 🔒 Physical: Partially Local: Yes Remote: No Availability: 🔒 Status: Not defined 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: Upgrade Status: 🔍 0-Day Time: 🔒 Upgrade: opam 2.5.1 Patch: github.com Timelineinfo 04/16/2026 Advisory disclosed 04/16/2026 +0 days CVE reserved 04/16/2026 +0 days VulDB entry created 04/16/2026 +0 days VulDB entry last update Sourcesinfo Product: github.com Advisory: github.com Status: Confirmed CVE: CVE-2026-41082 (🔒) GCVE (CVE): GCVE-0-2026-41082 GCVE (VulDB): GCVE-100-357962 EUVD: 🔒 Entryinfo Created: 04/16/2026 21:42 Updated: 04/16/2026 21:54 Changes: 04/16/2026 21:42 (66), 04/16/2026 21:54 (1) Complete: 🔍 Cache ID: 99:832:101 Discussion No comments yet. Languages: en. Please log in to comment. ◂ PreviousOverviewNext ▸