CVE-2026-43001

HIGHNVD 8.08.0—
EchelonGraph scoreMEDIUM confidence

This high-severity CVE scores 8.0 under NVD CVSS v3. EPSS exploit probability: 0.5%, top 62% of all CVEs by exploit prediction. GitHub Security Advisory enrichment pending alignment with NVD CVSS.

Triggered by: NVD CVSS baseline
Sources: epss, ghsa, nvd
8.0EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 8.0Exploit: None knownExposed: 0

A fix is available — apply it.

An issue was discovered in OpenStack Keystone before 29.0.2. POST /v3/credentials did not validate that the caller-supplied project_id for an EC2-type credential matched the project of the authenticating application credential. This allowed an attacker holding an unrestricted application credential for project A to create an EC2 credential targeting project B; a subsequent /v3/ec2tokens exchange would then issue a Keystone token scoped to project B while still carrying the original app_cred_id, enabling cross-project lateral movement within the credential owner's role footprint.

CVSS v3
8.0
EG Score
8.0(medium)
EG Risk
36(Track)
EG Risk 36/100SSVC: 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
Severity80% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
38%
KEV
Not listed

Published

May 1, 2026

Last Modified

August 14, 2026

Advisory Details (2)

Auto-updated May 1, 2026
No patch confirmed yet.
generic
https://review.opendev.org/c/openstack/keystone/+/985804
generic

Bug #2149775 “Generic EC2 credential creation allows application...” : Bugs : OpenStack Identity (keystone)

https://bugs.launchpad.net/keystone/+bug/2149775

Vendor Advisories for CVE-2026-43001(2)

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

Patch Availability(3)

Vendor / EcosystemFixed in / PatchReleasedSource
redhatrhosp-rhel8/openstack-keystone:1:16.0.3-2.20260616134936.9d699a7.el8ost2026-08-13redhat
redhatopenstack-keystone-1:23.0.3-18.0.20260610133808.9e3dfb4.el9ost2026-07-15redhat
pipkeystone—ghsa

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

(5 across 5 ecosystems)
Debian:11(1)
PackageVulnerable rangeFixed inDependents
keystone2:18.0.0-3, 2:18.0.0-3+deb11u1, 2:18.1.0-1+deb11u22:18.1.0-1+deb11u3—
Debian:12(1)
PackageVulnerable rangeFixed inDependents
keystone2:22.0.0-2, 2:22.0.2-0+deb12u1, 2:22.0.2-0+deb12u22:22.0.2-0+deb12u3—
Debian:13(1)
PackageVulnerable rangeFixed inDependents
keystone2:27.0.0-3, 2:27.0.0-3+deb13u1, 2:27.0.0-3+deb13u32:27.0.0-3+deb13u4—
Debian:14(1)
PackageVulnerable rangeFixed inDependents
keystone2:27.0.0-3 ... 2:29.0.1-1 (16 versions)2:29.0.1-2—
PyPI(1)
PackageVulnerable rangeFixed inDependents
keystone14.0.0 ... 29.0.1 (54 versions)29.0.2—

Weakness Classification(2)

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

Additional Vendor Advisories

(2)

Vendors that published advisories for this CVE beyond the curated set above. Broader coverage but minimal per-row detail — click through for the original advisory.

Data Freshness Timeline

(refreshed 5× in last 7d / 83× 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 201 total refreshes for this CVE.

  1. 2026-08-25 13:49 UTCEPSS rescore
  2. 2026-08-23 00:19 UTCEPSS rescore
  3. 2026-08-21 23:49 UTCEPSS rescore
  4. 2026-08-20 22:55 UTCEPSS rescore
  5. 2026-08-19 17:03 UTCEPSS rescore
  6. 2026-08-18 13:48 UTCEPSS rescore
  7. 2026-08-17 13:47 UTCEPSS rescore
  8. 2026-08-17 13:45 UTCEG score recompute
  9. 2026-08-17 13:45 UTCVendor advisory
  10. 2026-08-17 13:45 UTCGHSA enrichment
  11. 2026-08-16 14:56 UTCEPSS rescore
  12. 2026-08-16 05:19 UTCEG score recompute
  13. 2026-08-16 05:19 UTCVendor advisory
  14. 2026-08-16 05:19 UTCGHSA enrichment
  15. 2026-08-16 02:14 UTCEPSS rescore
  16. 2026-08-15 01:54 UTCEG score recompute
  17. 2026-08-15 01:54 UTCVendor advisory
  18. 2026-08-15 01:54 UTCGHSA enrichment
  19. 2026-08-15 01:30 UTCEPSS rescore
  20. 2026-08-14 13:28 UTCVendor advisory
  21. 2026-08-14 13:28 UTCGHSA enrichment
  22. 2026-08-14 12:29 UTCVendor advisory
  23. 2026-08-14 12:29 UTCGHSA enrichment
  24. 2026-08-14 03:48 UTCEG score recompute
  25. 2026-08-14 03:48 UTCVendor advisory
Show 75 more
  1. 2026-08-14 03:48 UTCGHSA enrichment
  2. 2026-08-13 22:00 UTCEPSS rescore
  3. 2026-08-13 06:43 UTCVendor advisory
  4. 2026-08-13 06:43 UTCGHSA enrichment
  5. 2026-08-12 17:25 UTCEG score recompute
  6. 2026-08-12 17:25 UTCVendor advisory
  7. 2026-08-12 17:25 UTCGHSA enrichment
  8. 2026-08-12 13:51 UTCEPSS rescore
  9. 2026-08-11 16:23 UTCEG score recompute
  10. 2026-08-11 16:23 UTCVendor advisory
  11. 2026-08-11 16:23 UTCGHSA enrichment
  12. 2026-08-11 13:43 UTCEPSS rescore
  13. 2026-08-11 01:50 UTCEG score recompute
  14. 2026-08-11 01:50 UTCVendor advisory
  15. 2026-08-11 01:50 UTCGHSA enrichment
  16. 2026-08-11 00:00 UTCEPSS rescore
  17. 2026-08-10 03:50 UTCVendor advisory
  18. 2026-08-10 03:50 UTCGHSA enrichment
  19. 2026-08-09 15:25 UTCEG score recompute
  20. 2026-08-09 15:25 UTCVendor advisory
  21. 2026-08-09 15:25 UTCGHSA enrichment
  22. 2026-08-09 13:46 UTCEPSS rescore
  23. 2026-08-09 02:59 UTCEG score recompute
  24. 2026-08-09 02:59 UTCVendor advisory
  25. 2026-08-09 02:59 UTCGHSA enrichment
  26. 2026-08-08 16:37 UTCEPSS rescore
  27. 2026-08-08 03:28 UTCEG score recompute
  28. 2026-08-08 03:28 UTCVendor advisory
  29. 2026-08-08 03:28 UTCGHSA enrichment
  30. 2026-08-07 15:03 UTCVendor advisory
  31. 2026-08-07 15:02 UTCGHSA enrichment
  32. 2026-08-07 02:37 UTCEG score recompute
  33. 2026-08-07 02:37 UTCVendor advisory
  34. 2026-08-07 02:37 UTCGHSA enrichment
  35. 2026-08-06 13:46 UTCEPSS rescore
  36. 2026-08-06 11:08 UTCVendor advisory
  37. 2026-08-06 11:08 UTCGHSA enrichment
  38. 2026-08-05 22:36 UTCEG score recompute
  39. 2026-08-05 22:36 UTCVendor advisory
  40. 2026-08-05 22:36 UTCGHSA enrichment
  41. 2026-08-05 19:17 UTCEPSS rescore
  42. 2026-08-04 15:10 UTCEPSS rescore
  43. 2026-08-04 10:38 UTCEPSS rescore
  44. 2026-08-03 20:26 UTCEG score recompute
  45. 2026-08-03 20:26 UTCVendor advisory
  46. 2026-08-03 20:26 UTCGHSA enrichment
  47. 2026-08-03 10:36 UTCEPSS rescore
  48. 2026-08-02 18:11 UTCVendor advisory
  49. 2026-08-02 18:11 UTCGHSA enrichment
  50. 2026-08-02 05:41 UTCEG score recompute
  51. 2026-08-02 05:41 UTCVendor advisory
  52. 2026-08-02 05:41 UTCGHSA enrichment
  53. 2026-08-02 02:27 UTCEPSS rescore
  54. 2026-08-01 04:16 UTCEPSS rescore
  55. 2026-07-30 16:28 UTCEPSS rescore
  56. 2026-07-30 01:30 UTCEPSS rescore
  57. 2026-07-28 15:36 UTCEPSS rescore
  58. 2026-07-27 14:13 UTCEPSS rescore
  59. 2026-07-26 14:54 UTCEPSS rescore
  60. 2026-07-26 14:54 UTCEPSS rescore
  61. 2026-07-25 14:18 UTCEPSS rescore
  62. 2026-07-24 14:17 UTCEPSS rescore
  63. 2026-07-23 14:18 UTCEPSS rescore
  64. 2026-07-23 03:12 UTCEG score recompute▲ 0.10
  65. 2026-07-22 14:08 UTCEPSS rescore
  66. 2026-07-21 15:24 UTCEPSS rescore
  67. 2026-07-20 17:08 UTCEPSS rescore
  68. 2026-07-20 11:04 UTCOSV refresh
  69. 2026-07-19 14:31 UTCEPSS rescore
  70. 2026-07-19 02:29 UTCEPSS rescore
  71. 2026-07-18 10:04 UTCEPSS rescore
  72. 2026-07-16 17:03 UTCEPSS rescore
  73. 2026-07-15 16:57 UTCEPSS rescore
  74. 2026-07-15 14:22 UTCNVD updateCVSS v3 → 8
  75. 2026-07-15 14:09 UTCMITRE cvelistV5CVSS v3 → 7.9

Related CVEs(same product + same vendor + same CWE)

Same product

1 shown

pip:keystone

Frequently asked(5)

What is CVE-2026-43001?
CVE-2026-43001 is a high vulnerability published on May 1, 2026. An issue was discovered in OpenStack Keystone before 29.0.2. POST /v3/credentials did not validate that the caller-supplied projectid for an EC2-type credential matched the project of the authenticating application credential. This allowed an attacker holding an unrestricted application credential…
When was CVE-2026-43001 disclosed?
CVE-2026-43001 was first published in the National Vulnerability Database on May 1, 2026, with the most recent update on August 14, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-43001 actively exploited?
CVE-2026-43001 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 61.7% of all scored CVEs.
What is the CVSS score of CVE-2026-43001?
CVE-2026-43001 has a CVSS v3 base score of 8.0 (NVD).
How do I remediate CVE-2026-43001?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-43001, 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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