CVE-2026-102567— CTranslate2 before 4.8.1 Out-of-Bounds Read via Model Deserialization
Quick assessment
Affected
OpenNMT CTranslate2
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
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, caus
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I. Basic Information for CVE-2026-102567
Vulnerability Information
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Vulnerability Title
CTranslate2 before 4.8.1 Out-of-Bounds Read via Model Deserialization
Source: CVE Program / CVE List V5
Vulnerability Description
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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
跨界内存读
Source: CVE Program / CVE List V5
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| OpenNMT | CTranslate2 | 0 ~ 4.8.1 | - |
|
II. Public POCs for CVE-2026-102567
| # | POC Description | Source Link | Shenlong Link |
|---|
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Other References for CVE-2026-102567 (6)
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https://github.com/OpenNMT/CTranslate2/blob/v4.8.0/src/models/model.cc#L81-L87 technical-description
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IV. Related Vulnerabilities
Same weakness: CWE-125
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CVE-2026-95509
Out-of-bounds read vulnerability in string formatting impact
V. Comments for CVE-2026-102567
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