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Vulnerability · Published Aug 25, 2026 · Assigned by redhat

CVE-2026-78322File-roller: file-roller: stack buffer overflow in parse_progress_line for 7z and rar handlers

Medium 6.5

In plain English

A medium-severity buffer overflow in Red Hat Enterprise Linux 6 from Red Hat. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.5% (higher than 43% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)6.5Medium
Exploit odds (30 days)0.5%top 56.6% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known

Official description

A flaw was found in file-roller. When opening or extracting a malicious 7z or RAR archive containing a file entry with an excessively long path, file-roller's progress-line parsing copies the path into a fixed-size stack buffer using an unbounded string copy. This can trigger a stack buffer overflow and cause file-roller to terminate, resulting in a denial of service. To exploit this flaw, a victim must open or extract the crafted archive using file-roller.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Debian:12file-rollerno fix listedDEBIAN-CVE-2026-78322
Debian:13file-rollerno fix listedDEBIAN-CVE-2026-78322
Debian:14file-roller44.7-1DEBIAN-CVE-2026-78322
Ubuntu:22.04:LTSfile-rollerno fix listedUBUNTU-CVE-2026-78322
Ubuntu:24.04:LTSfile-rollerno fix listedUBUNTU-CVE-2026-78322
Ubuntu:26.04:LTSfile-rollerno fix listedUBUNTU-CVE-2026-78322

Affected products (as reported)

VendorProductVersions
Red Hat Red Hat Enterprise Linux 6 see references
Red Hat Red Hat Enterprise Linux 7 see references
Red Hat Red Hat Enterprise Linux 8 see references

Weakness: CWE-120 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

References