CVE-2026-55074

HIGHPre-NVD 8.28.2—
EchelonGraph scoreMEDIUM confidence

This high-severity CVE scores 8.2 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.4% (36th percentile of EPSS-scored CVEs). 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
8.2EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0.4%CVSS: 8.2Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

Ansible FreeBSD Jail Connection Plugin is an Ansible connection plugin for FreeBSD Jails via jexec. Through version 1.3.0, the jailexec connection plugin's put_file resolved a transfer's destination to a path on the jail host ( + ) and ran mkdir -p and mv there as root on the host. Those commands follow symbolic links, and the path was operated on outside the jail, so a symlink existing inside the jail was followed by the host-side, root-privileged mv. A party controlling content inside a managed jail (the jail's root, or any process able to create a symlink in a directory an Ansible task later writes to) can therefore cause an arbitrary root-owned write on the host, outside the jail — a full jail escape. Arbitrary root-owned host writes are readily escalated to host compromise (e.g. cron, rc.d, authorized_keys). Preconditions for this vulnerability are that the operator runs a copy/template/fetch-style task (anything using put_file) against the jail, and the attacker can place a symlink inside the jail at or above the task's destination before the transfer runs. This issue has been fixed in version 2.0.0.

CVSS v3
8.2
EG Score
8.2HIGHmedium confidence
EG Risk
37
EG Risk 37/100CISA SSVC

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
Severity82% × 45%
Exploitation0% × 40%
Automatability0% × 15%
CISA SSVC: Track at every mission impact level.
Action: A fix is available. Apply it within your standard update timelines.
EPSS PROB
0.4%
EPSS %ILE
36th
KEV
Not listed

CISA SSVCTrack at every mission impact level.

A fix is available. Apply it within your standard update timelines.

Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). Mission impact is CISA's Mission & Well-being decision point, and only you can judge it: high means the affected system is essential to your organisation's mission, or its compromise could cause irreversible harm to people. CISA's decision table

Published

August 12, 2026

Last Modified

September 24, 2026

Advisory Details (5)

Auto-updated Sep 21, 2026
Patch available. Sources: github, github_pr, github_commit, github_release.
github_release Patch Available

v2.0.0 — Security release: jail-escape fix

Patch available: chofstede/ansible_jailexec v2.0.0

https://github.com/chofstede/ansible_jailexec/releases/tag/v2.0.0
github Patch Available

ansible_jailexec/docs/security/advisory-2.0.0-jail-escape.md at main · chofstede/ansible_jailexec · GitHub

Affected: 2.0.0)","anchor":"security-advisory-jail-escape-via-symlink-in-put_file-fixed-in-

https://github.com/chofstede/ansible_jailexec/blob/main/docs/security/advisory-2.0.0-jail-escape.md
github_commit

commit 6e80eecb2db7 (chofstede/ansible_jailexec)

Fix landed in chofstede/ansible_jailexec commit 6e80eecb2db7 — awaiting tagged release

https://github.com/chofstede/ansible_jailexec/commit/6e80eecb2db7aebd1258fded6ae5c3aba1dd4123
github_pr

Release 2.0.0: fix jail-escape in file transfers + correctness fixes

Fix merged in chofstede/ansible_jailexec PR #6 on 2026-06-10 — awaiting tagged release

https://github.com/chofstede/ansible_jailexec/pull/6
github Patch Available

Jail escape via symlink following in put_file (host-side root mv) · Advisory · chofstede/ansible_jailexec · GitHub

Affected: 2.0.0. File transfers now run inside the jail via jexec (mkdir -p

https://github.com/chofstede/ansible_jailexec/security/advisories/GHSA-cxgv-hp74-jj7r

Vendor Advisories for CVE-2026-55074(1)

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

Affected Packages

(1 across 1 ecosystem)
PyPI(1)
PackageVulnerable rangeFix by version rangeDependents
ansible-jailexec1.2.0, 1.3.0
  • every version up to 2.0.0: fixed in 2.0.0
—

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 12× in last 7d / 27× 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. 2026-10-05 14:42 UTCEG score recompute
  2. 2026-10-04 23:22 UTCEPSS rescore
  3. 2026-10-03 19:54 UTCEG score recompute
  4. 2026-10-03 14:26 UTCEPSS rescore
  5. 2026-10-02 19:27 UTCEG score recompute
  6. 2026-10-02 17:56 UTCEPSS rescore
  7. 2026-10-02 08:07 UTCEG score recompute
  8. 2026-10-01 19:50 UTCEPSS rescore
  9. 2026-09-30 21:52 UTCEG score recompute
  10. 2026-09-30 15:03 UTCEPSS rescore
  11. 2026-09-29 15:22 UTCEPSS rescore
  12. 2026-09-29 04:18 UTCEG score recompute
  13. 2026-09-28 13:51 UTCEPSS rescore
  14. 2026-09-28 01:10 UTCEG score recompute
  15. 2026-09-27 13:48 UTCEPSS rescore
  16. 2026-09-27 09:50 UTCEG score recompute
  17. 2026-09-26 15:59 UTCEPSS rescore
  18. 2026-09-24 21:39 UTCEG score recompute
  19. 2026-09-24 14:04 UTCEPSS rescore
  20. 2026-09-24 01:40 UTCEG score recompute
  21. 2026-09-23 17:54 UTCEPSS rescore
  22. 2026-09-22 15:36 UTCEG score recompute
  23. 2026-09-21 16:55 UTCEG score recompute
  24. 2026-09-21 15:50 UTCEG score recompute
  25. 2026-09-21 15:24 UTCEG score recompute
Show 3 more
  1. 2026-09-21 14:41 UTCEG score recompute▲ 8.20
  2. 2026-09-21 14:40 UTCMITRE cvelistV5CVSS v3 → 8.2 · CVSS v4 → 8.2
  3. 2026-08-13 00:21 UTCEG score recompute

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-55074?
CVE-2026-55074 is a high vulnerability published on August 12, 2026. Ansible FreeBSD Jail Connection Plugin is an Ansible connection plugin for FreeBSD Jails via jexec. Through version 1.3.0, the jailexec connection plugin's putfile resolved a transfer's destination to a path on the jail host ( + ) and ran mkdir -p and mv there as root on the host. Those commands…
When was CVE-2026-55074 disclosed?
CVE-2026-55074 was first published on August 12, 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-2026-55074 actively exploited?
CVE-2026-55074 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.4% probability of exploitation in the next 30 days (36th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-55074?
CVE-2026-55074 has a CVSS base score of 8.2 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-55074?
A fix for CVE-2026-55074 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-55074 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

See which npm, PyPI, Go, and Maven packages are affected by CVE-2026-55074

Explore →

Is Your Infrastructure Affected by CVE-2026-55074?

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

Book a Demo →Browse All CVEs