CVE-2026-79705

MEDIUMPre-NVD 4.54.5—
EchelonGraph scoreHIGH confidence

Score 4.5 from GitHub Security Advisory published 2026-09-15. a secondary CVSS source baseline 4.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 4 sources updated this week
4.5EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 4.5Exploit: None knownExposed: 0

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

A flaw was found in the buildah/copier Go package. When used outside of Buildah by a non-root caller, a crafted tar archive containing malicious symlinks can escape the target extraction directory and create files outside the intended destination. Buildah itself uses chroot hardening and is not affected.

CVSS v3
4.5
EG Score
4.5(high)
EG Risk
20(Track)
EG Risk 20/100SSVC: 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
Severity45% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
29%
KEV
Not listed

Published

September 15, 2026

Last Modified

September 16, 2026

Advisory Details (2)

Auto-updated Sep 15, 2026
Patch available. Sources: redhat.
redhat

2523419 – (CVE-2026-79705) CVE-2026-79705 podman: buildah: buildah/copier: Directory escape via crafted tar symlinks when used outside Buildah by non-root callers

https://bugzilla.redhat.com/show_bug.cgi?id=2523419
redhat Patch Available

CVE-2026-79705 - Red Hat Customer Portal

Affected: Red Hat Enterprise Linux 10\",\"advisory\":[],\"package\":\"podman\",\"state\":\"Fix deferred\",\"lifecycle_url\":\"https://acc

https://access.redhat.com/security/cve/CVE-2026-79705

Vendor Advisories for CVE-2026-79705(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.

All Vendor Advisories

(1)

Every vendor that published an advisory referencing this CVE — pulled from our cve_vendor_advisories aggregation. Click any row for the vendor's original advisory page.

Data Freshness Timeline

(refreshed 26× in last 7d / 38× 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. 2026-09-25 03:08 UTCEG score recompute
  2. 2026-09-25 03:08 UTCVendor advisory
  3. 2026-09-25 03:08 UTCGHSA enrichment
  4. 2026-09-24 14:04 UTCEPSS rescore
  5. 2026-09-24 02:11 UTCEG score recompute
  6. 2026-09-24 02:11 UTCVendor advisory
  7. 2026-09-24 02:11 UTCGHSA enrichment
  8. 2026-09-23 17:54 UTCEPSS rescore
  9. 2026-09-23 01:18 UTCEG score recompute
  10. 2026-09-23 01:18 UTCVendor advisory
  11. 2026-09-23 01:18 UTCGHSA enrichment
  12. 2026-09-22 16:01 UTCEPSS rescore
  13. 2026-09-22 00:24 UTCEG score recompute
  14. 2026-09-22 00:24 UTCVendor advisory
  15. 2026-09-22 00:24 UTCGHSA enrichment
  16. 2026-09-21 21:09 UTCEPSS rescore
  17. 2026-09-20 23:31 UTCEG score recompute
  18. 2026-09-20 23:31 UTCVendor advisory
  19. 2026-09-20 23:31 UTCGHSA enrichment
  20. 2026-09-20 20:16 UTCEPSS rescore
  21. 2026-09-19 22:37 UTCEG score recompute
  22. 2026-09-19 22:37 UTCVendor advisory
  23. 2026-09-19 22:37 UTCGHSA enrichment
  24. 2026-09-18 21:43 UTCEG score recompute
  25. 2026-09-18 21:43 UTCGHSA enrichment
Show 13 more
  1. 2026-09-18 19:28 UTCEPSS rescore
  2. 2026-09-17 20:50 UTCEG score recompute
  3. 2026-09-17 20:50 UTCGHSA enrichment
  4. 2026-09-16 19:57 UTCGHSA enrichment
  5. 2026-09-16 19:26 UTCEG score recompute
  6. 2026-09-16 19:26 UTCGHSA enrichment
  7. 2026-09-16 14:08 UTCEPSS rescore
  8. 2026-09-15 18:33 UTCEG score recompute
  9. 2026-09-15 18:33 UTCGHSA enrichment
  10. 2026-09-15 18:04 UTCEG score recompute
  11. 2026-09-15 17:32 UTCEG score recompute
  12. 2026-09-15 16:33 UTCEG score recompute
  13. 2026-09-15 16:32 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-79705?
CVE-2026-79705 is a medium vulnerability published on September 15, 2026. A flaw was found in the buildah/copier Go package. When used outside of Buildah by a non-root caller, a crafted tar archive containing malicious symlinks can escape the target extraction directory and create files outside the intended destination. Buildah itself uses chroot hardening and is not…
When was CVE-2026-79705 disclosed?
CVE-2026-79705 was first published in the National Vulnerability Database on September 15, 2026, with the most recent update on September 16, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-79705 actively exploited?
CVE-2026-79705 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 70.9% of all scored CVEs.
What is the CVSS score of CVE-2026-79705?
CVE-2026-79705 has a CVSS v3 base score of 4.5 (NVD).
How do I remediate CVE-2026-79705?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-79705, 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-2026-79705

Explore →

Is Your Infrastructure Affected by CVE-2026-79705?

EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.

Book a Demo →Browse All CVEs