CVE-2026-16493

HIGHPre-NVD 7.87.8—
EchelonGraph scoreMEDIUM confidence

Score 7.8 from GitHub Security Advisory (severity: HIGH) published 2026-07-21. a secondary CVSS source baseline 7.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 4 sources updated this week
7.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 7.8Exploit: None knownExposed: 0

A fix is available — apply it.

A flaw was found in ansible-core. The _extract_collection_from_git() function in ansible-core's concrete_artifact_manager.py constructs git clone commands without a '--' (end-of-options) separator before user-supplied URLs when installing collections from git sources. An attacker who provides a crafted collection source URI containing git argument injection payloads can achieve arbitrary command execution when a user runs 'ansible-galaxy collection install' with the malicious source. This is an incomplete fix for CVE-2026-11332, which hardened the role install path but missed the equivalent collection install code path.

CVSS v3
7.8
EG Score
7.8(medium)
EG Risk
35(Track)
EG Risk 35/100SSVC: 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
Severity78% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
7%
KEV
Not listed

Published

July 21, 2026

Last Modified

September 4, 2026

Advisory Details (2)

Auto-updated Jul 21, 2026
Patch available. Sources: redhat.
redhat

2503724 – (CVE-2026-16493) CVE-2026-16493 ansible-core: argument injection in ansible-galaxy collection install via git clone (incomplete fix for CVE-2026-11332)

https://bugzilla.redhat.com/show_bug.cgi?id=2503724
redhat Patch Available

cve-details

https://access.redhat.com/security/cve/CVE-2026-16493

Vendor Advisories for CVE-2026-16493(5)

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

Patch Availability(2)

Vendor / EcosystemFixed in / PatchReleasedSource
redhatansible-core-1:2.16.19-1.el9sat2026-09-03redhat
redhatpython3.12-pulpcore-0:3.73.30-3.el9pc2026-09-03redhat

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

(7 across 4 ecosystems)
Debian:12(2)
PackageVulnerable rangeFixed inDependents
ansible—5.4.0-1—
ansible-core2.14.10-1 ... 2.21.2-1 (52 versions)——
Debian:13(2)
PackageVulnerable rangeFixed inDependents
ansible—5.4.0-1—
ansible-core2.19.0-1 ... 2.21.2-1 (16 versions)——
Debian:14(2)
PackageVulnerable rangeFixed inDependents
ansible—5.4.0-1—
ansible-core2.19.0-1 ... 2.21.2-1 (14 versions)——
Debian:11(1)
PackageVulnerable rangeFixed inDependents
ansible10.0.0+dfsg-1 ... 9.5.1+dfsg-1 (42 versions)——

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 25× in last 7d / 107× 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.

Showing the most recent 100 of 219 total refreshes for this CVE.

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

Related CVEs(same vendor + same CWE)

Frequently asked(5)

What is CVE-2026-16493?
CVE-2026-16493 is a high vulnerability published on July 21, 2026. A flaw was found in ansible-core. The extractcollectionfromgit() function in ansible-core's concreteartifactmanager.py constructs git clone commands without a '--' (end-of-options) separator before user-supplied URLs when installing collections from git sources. An attacker who provides a crafted…
When was CVE-2026-16493 disclosed?
CVE-2026-16493 was first published in the National Vulnerability Database on July 21, 2026, with the most recent update on September 4, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-16493 actively exploited?
CVE-2026-16493 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 92.8% of all scored CVEs.
What is the CVSS score of CVE-2026-16493?
CVE-2026-16493 has a CVSS v3 base score of 7.8 (NVD).
How do I remediate CVE-2026-16493?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-16493, 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

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