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CVE-2026-112284— libaribcaption 1.1.0 through 1.1.2 Out-of-Bounds Read via DecoderImpl::HandleGLGR

Quick assessment

Affected
xqq libaribcaption
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.

libaribcaption 1.1.0 至 1.1.2 版本在 DecoderImpl::HandleGLGR() 函数中存在全局越界读取漏洞。该函数在读取 78 项的 kLatinSpecialTable 时，未进行上界检查，导致读取超出数组范围。攻击者可构造包含 ESC 28 4C 序列并随后附加 0x6F 至 0x7E 字节的字幕，指定拉丁特殊字符集，从而泄露相邻的只读数据或导致解码过程崩溃。

CVSS 3.3 · Low

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application

Affected Version Matrix 1

VendorProduct Version RangeStatus
xqq libaribcaption 1.1.0≤ 1.1.2 affected
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I. Basic Information for CVE-2026-112284

Vulnerability Information
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Vulnerability Title
libaribcaption 1.1.0 through 1.1.2 Out-of-Bounds Read via DecoderImpl::HandleGLGR
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L
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
xqq libaribcaption 1.1.0 ~ 1.1.2 -

II. Public POCs for CVE-2026-112284

# POC Description Source Link Shenlong Link
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III. Intelligence Information for CVE-2026-112284

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Patches & Fixes for CVE-2026-112284 (1)

Vendor Advisories for CVE-2026-112284 (1)

IV. Related Vulnerabilities

Same weakness: CWE-125

V. Comments for CVE-2026-112284

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