Vulnerability · Published Oct 19, 2026 · Assigned by VulnCheck
CVE-2026-112284libaribcaption 1.1.0 through 1.1.2 Out-of-Bounds Read via DecoderImpl::HandleGLGR
Low 3.3
In plain English
A low-severity out-of-bounds read in libaribcaption from xqq. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 8% of all known vulnerabilities).
Severity (CVSS 3.1)3.3Low
Exploit odds (30 days)0.2%top 92.4% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known
Official description
libaribcaption 1.1.0 through 1.1.2 contains a global out-of-bounds read in DecoderImpl::HandleGLGR() that reads past the 78-entry kLatinSpecialTable without an upper bound check. Attackers can supply crafted captions designating the Latin special set with ESC 28 4C followed by bytes 0x6F-0x7E to leak adjacent read-only data or crash decoding.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| xqq | libaribcaption | 1.1.0 – through 1.1.2 |
Weakness: CWE-125 · Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L
References
- https://hackmd.io/@haindpwn/libaribcaption-latin-special-table-oob-read third-party-advisory
- https://github.com/xqq/libaribcaption/blob/v1.1.2/src/decoder/decoder_impl.cpp technical-description
- https://github.com/xqq/libaribcaption/blob/v1.1.2/src/decoder/b24_conv_tables.hpp technical-description
- https://github.com/xqq/libaribcaption/commit/9917cb311c93d884cb820d122911a211042da26c technical-description, patch
- VulnCheck Advisory: libaribcaption 1.1.0 through 1.1.2 Out-of-Bounds Read via DecoderImpl::HandleGLGR third-party-advisory