Vulnerability · Published Jul 30, 2026 · Assigned by GitHub_M
CVE-2026-54715GoAccess: Heap Out-of-Bounds Write in parse_browser()
High 7.1
In plain English
A high-severity heap buffer overflow in goaccess from allinurl. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 39% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Official 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.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian:12 | goaccess | no fix listed | DEBIAN-CVE-2026-54715 |
| Debian:13 | goaccess | 1:1.9.3-1+deb13u1 | DEBIAN-CVE-2026-54715 |
| Debian:14 | goaccess | 1:1.11-1 | DEBIAN-CVE-2026-54715 |
| Ubuntu:22.04:LTS | goaccess | no fix listed | UBUNTU-CVE-2026-54715 |
| Ubuntu:24.04:LTS | goaccess | no fix listed | UBUNTU-CVE-2026-54715 |
| Ubuntu:26.04:LTS | goaccess | no fix listed | UBUNTU-CVE-2026-54715 |
| Ubuntu:26.10 | goaccess | no fix listed | UBUNTU-CVE-2026-54715 |
Affected products (as reported)
Weakness: CWE-122, CWE-787 · Vector: 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