CVE-2026-78322

MEDIUMPre-NVD 6.56.5—
EchelonGraph scoreHIGH confidence

Score 6.5 from GitHub Security Advisory published 2026-08-25. a secondary CVSS source baseline 6.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 4 sources updated this weekElevated
6.5EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 6.5Exploit: Elevated riskExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

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.

CVSS v3
6.5
EG Score
6.5(high)
EG Risk
45(Track)
EG Risk 45/100SSVC: Track

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity65% × 45%
Exploitation40% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
20%
KEV
Not listed

Published

August 25, 2026

Last Modified

August 28, 2026

Advisory Details (4)

Auto-updated Aug 25, 2026
⚠️ Active exploitation confirmed. Patch available. Sources: redhat.
generic🔴 Active Exploitation

(CVE-2026-78322) Stack buffer overflow in `parse_progress_line` for 7z and RAR handlers (#327) · Issues · GNOME / File Roller · GitLab

https://gitlab.gnome.org/GNOME/file-roller/-/issues/327
generic

Client Challenge

https://gitlab.gnome.org/GNOME/file-roller/-/commit/ffb76dc866342cef6a4914873faaa880d14d5aa4
redhat

2521767 – (CVE-2026-78322) CVE-2026-78322 file-roller: file-roller: stack buffer overflow in parse_progress_line for 7z and RAR handlers

https://bugzilla.redhat.com/show_bug.cgi?id=2521767
redhat Patch Available

CVE-2026-78322 - Red Hat Customer Portal

Affected: Red Hat Enterprise Linux 8 or OpenShift Container Platform 4, is affected by this vulnerability and a fix may be released to a

https://access.redhat.com/security/cve/CVE-2026-78322

Vendor Advisories for CVE-2026-78322(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 19× in last 7d / 19× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

  1. 2026-08-30 01:22 UTCEPSS rescore
  2. 2026-08-29 22:58 UTCEG score recompute
  3. 2026-08-29 22:58 UTCGHSA enrichment
  4. 2026-08-28 21:42 UTCEPSS rescore
  5. 2026-08-28 21:25 UTCGHSA enrichment
  6. 2026-08-28 19:24 UTCGHSA enrichment
  7. 2026-08-27 17:36 UTCEG score recompute
  8. 2026-08-27 17:36 UTCGHSA enrichment
  9. 2026-08-27 17:14 UTCEG score recompute
  10. 2026-08-27 17:14 UTCGHSA enrichment
  11. 2026-08-27 11:29 UTCEG score recompute
  12. 2026-08-27 11:29 UTCGHSA enrichment
  13. 2026-08-26 14:47 UTCEPSS rescore
  14. 2026-08-26 09:56 UTCEG score recompute
  15. 2026-08-26 09:56 UTCGHSA enrichment
  16. 2026-08-25 13:49 UTCEPSS rescore
  17. 2026-08-25 08:23 UTCEG score recompute
  18. 2026-08-25 07:37 UTCEG score recompute
  19. 2026-08-25 07:36 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-78322?
CVE-2026-78322 is a medium vulnerability published on August 25, 2026. 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…
When was CVE-2026-78322 disclosed?
CVE-2026-78322 was first published in the National Vulnerability Database on August 25, 2026, with the most recent update on August 28, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-78322 actively exploited?
CVE-2026-78322 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 79.7% of all scored CVEs.
What is the CVSS score of CVE-2026-78322?
CVE-2026-78322 has a CVSS v3 base score of 6.5 (NVD).
How do I remediate CVE-2026-78322?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-78322, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

Explore the affected products and dependency analysis for CVE-2026-78322

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