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CVE-2026-54715— GoAccess: Heap Out-of-Bounds Write in parse_browser()

Quick assessment

Affected
allinurl goaccess
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

GoAccess 是一款在类 UNIX 系统终端中运行或通过浏览器访问的实时 Web 日志分析器和交互式查看工具。在版本 1.10.2 中， 函数假定匹配到的浏览器令牌以 "Opera" 开头，并将尾部版本子字符串移动至匹配后五位，从而允许在处理访问日志时，构造的 User-Agent 字符串可在堆分配区域之外写入最多四个由攻击者控制的字节，导致 GoAccess 发生内存损坏或崩溃。该问题已在版本 1.11 中修复。

CVSS 7.1 · High EPSS 0.45% · P38

Possible ATT&CK Techniques 1 AI

T1203 · Exploitation for Client Execution

Affected Version Matrix 1

VendorProduct Version RangeStatus
allinurl goaccess >= 1.10.2, < 1.11 affected
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I. Basic Information for CVE-2026-54715

Vulnerability Information
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Vulnerability Title
GoAccess: Heap Out-of-Bounds Write in parse_browser()
Source: CVE Program / CVE List V5
Vulnerability Description
GoAccess is a real-time web log analyzer and interactive viewer that runs in a terminal in *nix systems or through the browser. In version 1.10.2, parse_browser assumes the matched browser token begins with Opera and moves a trailing version substring to match plus five, allowing a crafted User-Agent in a processed access log to write one to four attacker-influenced bytes beyond the heap allocation and corrupt or crash GoAccess. This issue is fixed in version 1.11.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:L/VA:H/SC:N/SI:N/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
堆缓冲区溢出
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
allinurl goaccess >= 1.10.2, < 1.11 -

II. Public POCs for CVE-2026-54715

# POC Description Source Link Shenlong Link
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Qwen3.6-35B-A3B · 5844 chars
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III. Intelligence Information for CVE-2026-54715

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Patches & Fixes for CVE-2026-54715 (1)

Vendor Advisories for CVE-2026-54715 (1)

Same Patch Batch · allinurl · 2026-07-30 · 3 CVEs total

CVE-2026-55768 8.7 HIGH GoAccess WebSocket Server: Signed 32 bit truncation of the 64 bit frame length causes a re
CVE-2026-55777 5.3 MEDIUM GoAccess: Out-of-bounds heap read in parse_ios() via crafted User-Agent leads to remote cr

IV. Related Vulnerabilities

Same product: goaccess
Same vendor: allinurl
Same weakness: CWE-122

V. Comments for CVE-2026-54715

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