CVE-2026-11837

HIGHPre-NVD 7.37.3
EchelonGraph scoreMEDIUM confidence

“—” beside the score: it is equal to the CVSS score beside it.

Score 7.3 from GitHub Security Advisory (severity: HIGH) published 2026-06-10. A secondary CVSS source baseline 7.3; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: EPSS, GitHub Security Advisory, a secondary CVSS source

Also known asEUVD-2026-35982 (ENISA EUVD) · GHSA-49qh-h4vj-mrgf (GitHub Security Advisories)Source: ENISA EUVD

7.3EG
EchelonGraph verdictPlan a fixRemediate within your standard update timelines (the SSVC decision on this page).
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0.2%CVSS: 7.3Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

A local privilege escalation vulnerability was found in the ansible.posix authorized_key module. The module's keyfile() function uses os.chown() instead of os.lchown() and opens files without O_NOFOLLOW when managing SSH authorized keys. An unprivileged local user can pre-stage symbolic links in their ~/.ssh directory to redirect file ownership changes to arbitrary system paths when an operator runs the authorized_key task as root, leading to local privilege escalation.

CVSS v3
7.3
EG Score
7.3HIGHmedium confidence
EG Risk
33
EG Risk 33/100

EG Risk is EchelonGraph's 0–100 priority score. It fuses impact severity (EG Severity, the CVSS base score, never the KEV-floored or EPSS-lifted EG Score) with real-world exploitation and automatability, under weights EchelonGraph set by hand, so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner.

How it’s computed (value × EchelonGraph’s weight)
Severity73% × 45%
Impact severity (EG Severity): CVSS 7.3 of 10. Never the KEV-floored or EPSS-lifted EG Score.
Exploitation0.2% × 40%
FIRST EPSS: the 30-day exploitation probability when EchelonGraph scored this CVE.
Automatability0% × 15%
CISA's SSVC Automatable value: no (Vulnrichment).
SSVC (CISA's decision table, applied by EchelonGraph): Track at low or medium mission impact; Track* at high (mission-essential systems).
Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE.
Action: A fix is available. Apply it within your standard update timelines.
EPSS PROB
0.2%
EPSS %ILE
5th
KEV
Not listed

What the EG score is made of (scorer v4.0: the three questions the 0–10 score mixes, published apart · methodology)

The EG score (7.3): severity, escalated by confirmed exploitation. This CVE's 7.3 is its impact severity (EG Severity), not escalated.

EG Severity
7.3 HIGHCVSS-B, impact only: no KEV listing, EPSS or EG-KEV tier raises it.GitHub Security Advisory CVSS
EG Likelihood
0.2% within 30 daysSource: FIRST EPSS (model v2026.06.15, score date 2026-11-10). FIRST's exploitation probability, not an EchelonGraph model.
Confirmed exploitation
None on record (CISA KEV, EG-KEV Tier 1)Reported apart from the likelihood: an observed fact, not a probability.
EG Priority
SSVC Track at medium mission impactTrack at low or medium mission impact; Track* at high (mission-essential systems).CISA BOD 26-04: 14 days if the affected system is publicly exposed; Fix on system upgrade if it is not.Each input and its source, and whom BOD 26-04 binds: the SSVC and BOD 26-04 blocks below.

SSVC (CISA's decision table, applied by EchelonGraph)Track at low or medium mission impact; Track* at high (mission-essential systems).

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

Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE. Mission impact is CISA's Mission & Well-being decision point, and only you can judge it. CISA's table makes it high when Mission Prevalence is Essential — the vulnerable component "directly provides capabilities that constitute at least one MEF for at least one entity" (MEF: mission essential function) — or when Public Well-Being Impact is Irreversible: "multiple fatalities are likely", the cyber-physical system "is likely lost or destroyed", "extreme or serious externalities" are imposed on other parties, or social systems such as elections or the financial grid "are destabilized and potentially collapse". CISA's decision table

BOD 26-04 (CISA's remediation timeline, Table 1)14 days if the affected system is publicly exposed; Fix on system upgrade if it is not.

The score's inputs: In CISA KEV no (CISA's KEV catalog) · Automatable no (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). Whether your system is publicly exposed is yours to answer. BOD 26-04 binds US Federal Civilian Executive Branch agencies; for anyone else it is CISA's published timeline, a reference rather than an obligation. The directive · how EchelonGraph applies it

Published

June 10, 2026

Last Modified

November 4, 2026

Advisory Details (2)

Auto-updated Jun 11, 2026
Patch available. Sources: redhat.
Red Hat

2487424 – (CVE-2026-11837) CVE-2026-11837 ansible-collection-ansible-posix: ansible.posix authorized_key: local privilege escalation via symlink-following chown

https://bugzilla.redhat.com/show_bug.cgi?id=2487424
Red HatMentions a patch (unverified)

cve-details

https://access.redhat.com/security/cve/CVE-2026-11837

Patch Availability(4)

Vendor / EcosystemFix (by version range) / PatchReleasedSource
redhatrhc-worker-playbook-0:0.1.8-5.el8_8.12026-10-13redhat
redhatrhc-worker-playbook-0:0.1.8-2.el8_6.12026-10-12redhat
redhatrhc-worker-playbook-0:0.2.3-6.el10_0.22026-10-08redhat
redhatrhc-worker-playbook-0:0.2.10-1.el10_22026-07-21redhat

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Affected Packages

(4 across 4 ecosystems)
Debian:11(1)
PackageVulnerable rangeFix by version rangeDependents
ansible10.0.0+dfsg-1 ... 9.5.1+dfsg-1 (42 versions)
  • every version on: no fix on record
—
Debian:12(1)
PackageVulnerable rangeFix by version rangeDependents
ansible10.0.0+dfsg-1 ... 9.5.1+dfsg-1 (30 versions)
  • every version on: no fix on record
—
Debian:13(1)
PackageVulnerable rangeFix by version rangeDependents
ansible12.0.0+dfsg-0+deb13u1 ... 14.4.0+dfsg-1 (14 versions)
  • every version on: no fix on record
—
Debian:14(1)
PackageVulnerable rangeFix by version rangeDependents
ansible12.0.0+dfsg-1 ... 14.4.0+dfsg-1 (12 versions)
  • every version on: no fix on record
—

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 9× in last 7d / 45× in last 30d)

Each row is a time one of our pipelines fetched, updated or re-scored this CVE. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed its CVE.org record (CNA or CISA ADP). An arrow marks a change the record states ("CVSS v3 → 9.1"); EPSS and GHSA rows show the values recorded at that time, not what changed (EPSS values are rounded; hover one for the exact figures). "EchelonGraph re-scored" is our own recompute of this CVE's score, not an update from a source, and is not counted in the refreshes above. Most recent first.

Showing the most recent 100 of 346 rows on record for this CVE.

A repeat, a row identical to one the same pipeline wrote less than 10 seconds earlier, is not a separate refresh and is not counted. None are among the latest 100 rows. The 246 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-11-13 16:50 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  2. 2026-11-12 16:33 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  3. 2026-11-11 16:38 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  4. 2026-11-11 06:48 UTCEchelonGraph re-scored
  5. 2026-11-11 06:48 UTCVendor advisory
  6. 2026-11-11 06:48 UTCGHSA enrichmentGHSA-49qh-h4vj-mrgf · GitHub severity HIGH · GitHub CVSS 7.3
  7. 2026-11-10 16:42 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  8. 2026-11-09 16:34 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  9. 2026-11-08 16:38 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  10. 2026-11-07 16:38 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  11. 2026-11-06 16:36 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  12. 2026-11-05 16:36 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  13. 2026-11-04 22:27 UTCEchelonGraph re-scored
  14. 2026-11-04 22:27 UTCVendor advisory
  15. 2026-11-04 22:27 UTCGHSA enrichmentGHSA-49qh-h4vj-mrgf · GitHub severity HIGH · GitHub CVSS 7.3
  16. 2026-11-04 21:56 UTCEchelonGraph re-scored
  17. 2026-11-04 21:56 UTCVendor advisory
  18. 2026-11-04 21:56 UTCGHSA enrichmentGHSA-49qh-h4vj-mrgf · GitHub severity HIGH · GitHub CVSS 7.3
  19. 2026-11-04 16:34 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  20. 2026-11-03 16:46 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  21. 2026-11-02 17:28 UTCEchelonGraph re-scored
  22. 2026-11-02 17:28 UTCVendor advisory
  23. 2026-11-02 17:28 UTCGHSA enrichmentGHSA-49qh-h4vj-mrgf · GitHub severity HIGH · GitHub CVSS 7.3
  24. 2026-11-02 16:44 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  25. 2026-11-01 16:33 UTCEPSS rescoreEPSS 0.2% · 5th percentile
Show 75 more
  1. 2026-10-31 16:32 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  2. 2026-10-30 16:33 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  3. 2026-10-29 16:32 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  4. 2026-10-29 14:26 UTCEchelonGraph re-scored
  5. 2026-10-29 14:26 UTCVendor advisory
  6. 2026-10-29 14:26 UTCGHSA enrichmentGHSA-49qh-h4vj-mrgf · GitHub severity HIGH · GitHub CVSS 7.3
  7. 2026-10-29 14:14 UTCEchelonGraph re-scored
  8. 2026-10-29 14:14 UTCVendor advisory
  9. 2026-10-29 14:13 UTCGHSA enrichmentGHSA-49qh-h4vj-mrgf · GitHub severity HIGH · GitHub CVSS 7.3
  10. 2026-10-28 16:31 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  11. 2026-10-27 18:38 UTCEchelonGraph re-scored
  12. 2026-10-27 18:38 UTCVendor advisory
  13. 2026-10-27 18:38 UTCGHSA enrichmentGHSA-49qh-h4vj-mrgf · GitHub severity HIGH · GitHub CVSS 7.3
  14. 2026-10-27 16:31 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  15. 2026-10-26 16:30 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  16. 2026-10-25 16:32 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  17. 2026-10-25 14:50 UTCEchelonGraph re-scored
  18. 2026-10-24 16:32 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  19. 2026-10-23 16:31 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  20. 2026-10-22 16:33 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  21. 2026-10-21 16:32 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  22. 2026-10-20 16:32 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  23. 2026-10-20 09:56 UTCEchelonGraph re-scored
  24. 2026-10-20 09:56 UTCVendor advisory
  25. 2026-10-20 09:55 UTCGHSA enrichmentGHSA-49qh-h4vj-mrgf · GitHub severity HIGH · GitHub CVSS 7.3
  26. 2026-10-19 16:31 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  27. 2026-10-18 16:31 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  28. 2026-10-18 05:04 UTCEchelonGraph re-scored
  29. 2026-10-16 16:40 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  30. 2026-10-15 16:31 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  31. 2026-10-14 16:32 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  32. 2026-10-13 21:42 UTCEchelonGraph re-scored
  33. 2026-10-13 21:42 UTCVendor advisory
  34. 2026-10-13 21:42 UTCGHSA enrichmentGHSA-49qh-h4vj-mrgf · GitHub severity HIGH · GitHub CVSS 7.3
  35. 2026-10-13 21:05 UTCEchelonGraph re-scored
  36. 2026-10-13 21:05 UTCVendor advisory
  37. 2026-10-13 21:04 UTCGHSA enrichmentGHSA-49qh-h4vj-mrgf · GitHub severity HIGH · GitHub CVSS 7.3
  38. 2026-10-13 16:33 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  39. 2026-10-12 16:37 UTCEchelonGraph re-scored
  40. 2026-10-12 08:26 UTCEchelonGraph re-scored
  41. 2026-10-12 08:26 UTCVendor advisory
  42. 2026-10-12 08:26 UTCGHSA enrichmentGHSA-49qh-h4vj-mrgf · GitHub severity HIGH · GitHub CVSS 7.3
  43. 2026-10-12 08:08 UTCEchelonGraph re-scored
  44. 2026-10-12 08:08 UTCVendor advisory
  45. 2026-10-12 08:08 UTCGHSA enrichmentGHSA-49qh-h4vj-mrgf · GitHub severity HIGH · GitHub CVSS 7.3
  46. 2026-10-11 20:13 UTCEchelonGraph re-scored
  47. 2026-10-11 18:25 UTCEchelonGraph re-scored
  48. 2026-10-11 14:58 UTCEchelonGraph re-scored
  49. 2026-10-11 13:48 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  50. 2026-10-10 19:59 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  51. 2026-10-09 20:06 UTCEPSS rescoreEPSS 0.2% · 4th percentile
  52. 2026-10-08 22:22 UTCEchelonGraph re-scored
  53. 2026-10-08 22:22 UTCGHSA enrichmentGHSA-49qh-h4vj-mrgf · GitHub severity HIGH · GitHub CVSS 7.3
  54. 2026-10-08 21:29 UTCEchelonGraph re-scored
  55. 2026-10-08 21:29 UTCGHSA enrichmentGHSA-49qh-h4vj-mrgf · GitHub severity HIGH · GitHub CVSS 7.3
  56. 2026-10-07 23:47 UTCEPSS rescoreEPSS 0.2% · 4th percentile
  57. 2026-10-06 15:17 UTCEPSS rescoreEPSS 0.2% · 4th percentile
  58. 2026-10-05 17:42 UTCEPSS rescoreEPSS 0.2% · 4th percentile
  59. 2026-10-04 23:21 UTCEPSS rescoreEPSS 0.2% · 4th percentile
  60. 2026-10-03 14:25 UTCEPSS rescoreEPSS 0.2% · 4th percentile
  61. 2026-10-01 19:49 UTCEPSS rescoreEPSS 0.2% · 4th percentile
  62. 2026-09-30 15:02 UTCEPSS rescoreEPSS 0.2% · 4th percentile
  63. 2026-09-29 15:20 UTCEPSS rescoreEPSS 0.2% · 4th percentile
  64. 2026-09-28 13:50 UTCEPSS rescoreEPSS 0.2% · 4th percentile
  65. 2026-09-26 15:58 UTCEPSS rescoreEPSS 0.2% · 4th percentile
  66. 2026-09-23 13:47 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  67. 2026-09-20 20:15 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  68. 2026-09-18 19:27 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  69. 2026-09-16 05:14 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  70. 2026-09-14 04:19 UTCEchelonGraph re-scored
  71. 2026-09-14 04:19 UTCGHSA enrichmentGHSA-49qh-h4vj-mrgf · GitHub severity HIGH · GitHub CVSS 7.3
  72. 2026-09-13 16:46 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  73. 2026-09-12 15:00 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  74. 2026-09-11 14:52 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  75. 2026-09-11 09:36 UTCEPSS rescoreEPSS 0.2% · 5th percentile

Frequently asked(5)

What is CVE-2026-11837?
CVE-2026-11837 is a high-severity vulnerability; its CVE record was published on June 10, 2026. A local privilege escalation vulnerability was found in the ansible.posix authorized_key module. The module's keyfile() function uses os.chown() instead of os.lchown() and opens files without O_NOFOLLOW when managing SSH authorized keys. An unprivileged local user can pre-stage symbolic links in…
When was CVE-2026-11837 made public?
CVE-2026-11837 was made public on June 10, 2026: that is the date its CVE record's CNA, Red Hat, Inc., gives for when the vulnerability was made public. The CVE record itself was published on June 10, 2026. EchelonGraph's copy of the record carries a last-modified date of November 4, 2026; the record at its source may have been updated since.
Is CVE-2026-11837 actively exploited?
CVE-2026-11837 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.2% probability of exploitation in the next 30 days (5th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-11837?
CVE-2026-11837 has a CVSS base score of 7.3 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-11837?
A fix for CVE-2026-11837 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-11837 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

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