CVE-2026-102567CTranslate2 before 4.8.1 Out-of-Bounds Read via Model Deserialization
Updated under an hour ago ()
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It affects OpenNMT CTranslate2. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
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CTranslate2 before 4.8.1 contains an out-of-bounds heap read vulnerability in the binary model loader when deserializing string fields without null terminators. Attackers can craft malicious model files to trigger heap memory reads past buffer boundaries, causing crashes or disclosing adjacent heap memory contents.
- CVSS
- 6.1 MEDIUM (v3.1, CNA)CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H
- Weakness (CWE)
- CWE-125
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- VulnCheck
- NVD analysis
- Awaiting Analysis
- Record last updated
- Sep 29, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
OpenNMT CTranslate2 opennmt:ctranslate2 (from the name) | before 4.8.1; 4.8.1 not affected | CNA record |
References
- https://github.com/OpenNMT/CTranslate2/pull/2068issue-tracking, patch
- https://github.com/OpenNMT/CTranslate2/commit/d9b991e0700933a0c05373df8b52ed89cdcab96dpatch
- https://github.com/OpenNMT/CTranslate2/blob/v4.8.0/src/models/model.cc#L81-L87technical-description
- https://github.com/OpenNMT/CTranslate2/releases/tag/v4.8.1release-notes
- https://github.com/OpenNMT/CTranslate2product
- https://www.vulncheck.com/advisories/ctranslate2-before-4.8.1-out-of-bounds-read-via-model-deserializationthird-party-advisory
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.