CVE-2026-79920

CRITICALPre-NVD 9.99.9—
EchelonGraph scoreMEDIUM confidence

This critical-severity CVE scores 9.9 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.6%, top 52% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).

Triggered by: NVD CVSS baseline
Sources: epss, secondary
Trending — 3 sources updated this week
9.9EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 1%CVSS: 9.9Exploit: None knownExposed: 0

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

Ajenti is a Linux & BSD modular server admin panel. Prior to version 2.2.16, any authenticated user can call /api/core/tasks/start to enqueue InstallPlugin, UnInstallPlugin, or UpgradeAll from plugins/plugins/tasks.py without plugin-management authorization. InstallPlugin and UnInstallPlugin construct a pip package specification from unvalidated name and version fields, and the task worker invokes pip while running as root. A low-privileged user can therefore select or manipulate a package installed with root privileges and can install, remove, or upgrade plugins without administrative permission, resulting in root code execution and full host compromise. This issue is fixed in version 2.2.16.

CVSS v3
9.9
EG Score
9.9(medium)
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
Severity99% × 45%
Exploitation1% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
1%
EPSS %ILE
48%
KEV
Not listed

Published

September 21, 2026

Last Modified

September 24, 2026

Advisory Details (3)

Auto-updated Sep 24, 2026
Patch available. Sources: github, github_commit.
github Patch Available

Privilege escalation to root via unauthenticated/unauthorized plugin install task in Ajenti · Advisory · ajenti/ajenti · GitHub

https://github.com/ajenti/ajenti/security/advisories/GHSA-j8xf-5fw2-f99q
github_commit

commit f07f02e0cdee (ajenti/ajenti)

Fix landed in ajenti/ajenti commit f07f02e0cdee — awaiting tagged release

https://github.com/ajenti/ajenti/commit/f07f02e0cdeeb3e528c1d5af28e27fd11623c49c
github_commit

commit 3a8cbee32df4 (ajenti/ajenti)

Fix landed in ajenti/ajenti commit 3a8cbee32df4 — awaiting tagged release

https://github.com/ajenti/ajenti/commit/3a8cbee32df4c5033796f19af4210011163a6f6e

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 11× in last 7d / 11× 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. 2026-09-24 15:03 UTCEG score recompute
  2. 2026-09-24 14:04 UTCEPSS rescore
  3. 2026-09-23 19:08 UTCEG score recompute
  4. 2026-09-23 17:54 UTCEPSS rescore
  5. 2026-09-22 19:17 UTCEG score recompute
  6. 2026-09-22 16:01 UTCEPSS rescore
  7. 2026-09-21 19:28 UTCEG score recompute
  8. 2026-09-21 19:05 UTCEG score recompute
  9. 2026-09-21 17:25 UTCEG score recompute
  10. 2026-09-21 16:50 UTCEG score recompute
  11. 2026-09-21 16:50 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-79920?
CVE-2026-79920 is a critical vulnerability published on September 21, 2026. Ajenti is a Linux & BSD modular server admin panel. Prior to version 2.2.16, any authenticated user can call /api/core/tasks/start to enqueue InstallPlugin, UnInstallPlugin, or UpgradeAll from plugins/plugins/tasks.py without plugin-management authorization. InstallPlugin and UnInstallPlugin…
When was CVE-2026-79920 disclosed?
CVE-2026-79920 was first published in the National Vulnerability Database on September 21, 2026, with the most recent update on September 24, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-79920 actively exploited?
CVE-2026-79920 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 1% probability of exploitation in the next 30 days, which ranks it in the top 52.3% of all scored CVEs.
What is the CVSS score of CVE-2026-79920?
CVE-2026-79920 has a CVSS v3 base score of 9.9 (NVD).
How do I remediate CVE-2026-79920?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-79920, 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-2026-79920

Explore →

Is Your Infrastructure Affected by CVE-2026-79920?

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

Book a Demo →Browse All CVEs