CVE-2026-34353 | OCaml up to 4.14.3 Bigarray.reshape integer overflow

VDB-353814 · CVE-2026-34353 · GCVE-0-2026-34353 OCAML UP TO 4.14.3 BIGARRAY.RESHAPE INTEGER OVERFLOW HISTORYDIFFRELATEJSONXMLCTI CVSS Meta Temp Score Current Exploit Price (≈) CTI Interest Score 4.2 $0-$5k 2.26+ Summaryinfo A vulnerability was found in OCaml up to 4.14.3. It has been declared as problematic. Affected is the function Bigarray.reshape. The manipulation results in integer overflow. This vulnerability is cataloged as CVE-2026-34353. The attack must be initiated from a local position. There is no exploit available. Detailsinfo A vulnerability was found in OCaml up to 4.14.3. It has been classified as problematic. Affected is the function Bigarray.reshape. The manipulation with an unknown input leads to a integer overflow vulnerability. CWE is classifying the issue as CWE-190. The product performs a calculation that can produce an integer overflow or wraparound, when the logic assumes that the resulting value will always be larger than the original value. This can introduce other weaknesses when the calculation is used for resource management or execution control. This is going to have an impact on confidentiality. CVE summarizes: In OCaml through 4.14.3, Bigarray.reshape allows an integer overflow, and resultant reading of arbitrary memory, when untrusted data is processed. The advisory is available at github.com. This vulnerability is traded as CVE-2026-34353 since 03/27/2026. The exploitability is told to be difficult. Local access is required to approach this attack. Technical details are known, but there is no available exploit. There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product. Productinfo Name OCaml Version 4.14.0 4.14.1 4.14.2 4.14.3 Website Product: https://github.com/ocaml/ocaml/ CPE 2.3info 🔒 🔒 🔒 CPE 2.2info 🔒 🔒 🔒 CVSSv4info VulDB Vector: 🔒 VulDB Reliability: 🔍 CVSSv3info VulDB Meta Base Score: 4.2 VulDB Meta Temp Score: 4.2 VulDB Base Score: 2.5 VulDB Temp Score: 2.5 VulDB Vector: 🔒 VulDB Reliability: 🔍 CNA Base Score: 5.9 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: Integer overflow CWE: CWE-190 / CWE-189 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: no mitigation known Status: 🔍 0-Day Time: 🔒 Timelineinfo 03/27/2026 Advisory disclosed 03/27/2026 +0 days CVE reserved 03/27/2026 +0 days VulDB entry created 03/27/2026 +0 days VulDB entry last update Sourcesinfo Product: github.com Advisory: github.com Status: Confirmed CVE: CVE-2026-34353 (🔒) GCVE (CVE): GCVE-0-2026-34353 GCVE (VulDB): GCVE-100-353814 Entryinfo Created: 03/27/2026 07:26 Changes: 03/27/2026 07:26 (60) Complete: 🔍 Cache ID: 99:419:101 Discussion No comments yet. Languages: en. Please log in to comment. ◂ PreviousOverviewNext ▸