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Fencer Vulns
medium 6.5

CVE-2026-78322 json

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

published 2026-08-25 2 mo ago modified 2026-11-06 3 d ago also EUVD-2026-65311

cvss
6.5
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.3%
EPSS 0.3% chance of exploitation in 30 days, percentile 26%
public exploits
0
none known

Summary

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.

Patch / fix

  • file-roller Debian 14 44.7-1

debian advisories DEBIAN-CVE-2026-78322

  • file-roller SLE Module for Desktop Applications 15 SP7 43.1-150600.3.3.1
  • file-roller SLES LTSS Extended Security 12 SP5 3.20.3-15.12.1

suse advisories SUSE-SU-2026:4007-1SUSE-SU-2026:3960-1

  • file-roller openSUSE Leap 16.0 44.5-bp160.2.1

opensuse advisories openSUSE-SU-2026:21667-1

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2026-78322 updated cvss 6.5

file-roller: file-roller: stack buffer overflow in parse_progress_line for 7z and RAR handlers

  • Red Hat Enterprise Linux 6 file-roller Red Hat Enterprise Linux 7 file-roller, file-roller-nautilus Red Hat Enterprise Linux 8 file-roller
    affected: workaround, no fix available “Avoid opening or extracting untrusted 7z or RAR archives with file-roller until an updated package is installed.”

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

CISA SSVC

Exploitation
Proof of concept is public
Automatable
no
Technical impact
partial
Assessed
2 mo ago

Exploit prediction

0.33% chance of exploitation in the next 30 days, higher than 26% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • gitlab.gnome.org https://gitlab.gnome.org/GNOME/file-roller/-/issues/327 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
CNA 3.1 6.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Affected products

  • Red Hat Red Hat Enterprise Linux 6
  • Red Hat Red Hat Enterprise Linux 7
  • Red Hat Red Hat Enterprise Linux 8

Classification

Weakness
  • CWE-120 Buffer Copy without Checking Size of Input

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.