CVE-2026-43003

HIGHNVD 7.58.0▲
EchelonGraph scoreMEDIUM confidence

Score 8.0 from GitHub Security Advisory (severity: HIGH) published 2026-05-01. NVD baseline CVSS 7.5; sources differ by 0.5.

Triggered by: GitHub Security Advisory CVSS
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: 1%CVSS: 7.5Exploit: None knownExposed: 0

A fix is available — apply it.

An issue was discovered in OpenStack ironic-python-agent 1.0.0 through 11.5.0. Ironic Python Agent (IPA) sometimes executes grub-install from within a chroot of the deployed partition image, leading to code execution in the case of a malicious image.

CVSS v3
7.5
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%
Exploitation1% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
1%
EPSS %ILE
61%
KEV
Not listed

Published

May 1, 2026

Last Modified

September 9, 2026

Advisory Details (2)

Auto-updated May 1, 2026
No patch confirmed yet.
generic

ironic-python-agent/ironic_python_agent/efi_utils.py at 236b33abffe6688afc39c21e351cc3889b3db2dd · openstack/ironic-python-agent · GitHub

https://github.com/openstack/ironic-python-agent/blob/236b33abffe6688afc39c21e351cc3889b3db2dd/ironic_python_agent/efi_utils.py#L134-L139
generic

Bug #2148310 “Command injection via chroot execution of tenant-c...” : Bugs : ironic-python-agent

https://bugs.launchpad.net/ironic-python-agent/+bug/2148310

Vendor Advisories for CVE-2026-43003(5)

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

Patch Availability(5)

Vendor / EcosystemFixed in / PatchReleasedSource
redhatopenshift4/ose-ironic-agent-rhel9:17875450852026-09-02redhat
redhatopenshift4/ose-ironic-agent-rhel9:17877354562026-09-01redhat
redhatopenshift4/ose-ironic-agent-rhel9:17869422822026-08-25redhat
redhatopenshift4/ose-ironic-agent-rhel9:17858833462026-08-11redhat
pipironic-python-agent—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

(6 across 5 ecosystems)
Debian:13(2)
PackageVulnerable rangeFixed inDependents
ironic1:29.0.0-7, 1:29.0.5-0+deb13u1, 1:29.0.5-0+deb13u21:29.0.5-0+deb13u3—
ironic-python-agent10.2.0-3 ... 11.5.0-5 (10 versions)——
Debian:11(1)
PackageVulnerable rangeFixed inDependents
ironic1:16.0.3-1 ... 1:35.0.1-8 (66 versions)——
Debian:12(1)
PackageVulnerable rangeFixed inDependents
ironic1:21.1.0-3 ... 1:21.4.4-0+deb12u1 (8 versions)1:21.4.4-0+deb12u2—
Debian:14(1)
PackageVulnerable rangeFixed inDependents
ironic1:29.0.0-7 ... 1:35.0.1-6 (15 versions)1:35.0.1-7—
PyPI(1)
PackageVulnerable rangeFixed inDependents
ironic-python-agent1.0.0 ... 9.9.0 (120 versions)11.6.0—

Weakness Classification(2)

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

Data Freshness Timeline

(refreshed 6× in last 7d / 37× 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 190 total refreshes for this CVE.

  1. 2026-09-18 19:28 UTCEPSS rescore
  2. 2026-09-17 19:31 UTCEPSS rescore
  3. 2026-09-16 14:08 UTCEPSS rescore
  4. 2026-09-16 05:15 UTCEPSS rescore
  5. 2026-09-13 16:47 UTCEPSS rescore
  6. 2026-09-12 15:01 UTCEPSS rescore
  7. 2026-09-11 14:53 UTCEPSS rescore
  8. 2026-09-11 09:37 UTCEPSS rescore
  9. 2026-09-10 09:34 UTCEPSS rescore
  10. 2026-09-09 13:41 UTCVendor advisory
  11. 2026-09-09 12:39 UTCEG score recompute
  12. 2026-09-09 12:39 UTCVendor advisory
  13. 2026-09-08 22:00 UTCEPSS rescore
  14. 2026-09-07 16:01 UTCEPSS rescore
  15. 2026-09-07 13:59 UTCVendor advisory
  16. 2026-09-07 13:07 UTCEG score recompute
  17. 2026-09-07 13:07 UTCVendor advisory
  18. 2026-09-06 13:47 UTCEPSS rescore
  19. 2026-09-04 05:06 UTCEPSS rescore
  20. 2026-09-02 14:12 UTCEPSS rescore
  21. 2026-09-02 13:43 UTCVendor advisory
  22. 2026-09-02 12:39 UTCEG score recompute
  23. 2026-09-02 12:39 UTCVendor advisory
  24. 2026-09-01 13:54 UTCEPSS rescore
  25. 2026-08-30 19:17 UTCEPSS rescore
Show 75 more
  1. 2026-08-30 01:22 UTCEPSS rescore
  2. 2026-08-28 21:41 UTCEPSS rescore
  3. 2026-08-27 14:25 UTCEPSS rescore
  4. 2026-08-26 16:11 UTCEG score recompute
  5. 2026-08-26 16:11 UTCVendor advisory
  6. 2026-08-26 14:46 UTCEPSS rescore
  7. 2026-08-26 12:22 UTCEG score recompute
  8. 2026-08-26 12:22 UTCVendor advisory
  9. 2026-08-25 13:49 UTCEPSS rescore
  10. 2026-08-23 00:19 UTCEPSS rescore
  11. 2026-08-21 23:49 UTCEPSS rescore
  12. 2026-08-20 22:55 UTCEPSS rescore
  13. 2026-08-19 17:03 UTCEPSS rescore
  14. 2026-08-18 13:48 UTCEPSS rescore
  15. 2026-08-17 13:47 UTCEPSS rescore
  16. 2026-08-17 13:45 UTCEG score recompute
  17. 2026-08-17 13:45 UTCVendor advisory
  18. 2026-08-16 14:56 UTCEPSS rescore
  19. 2026-08-16 05:19 UTCEG score recompute
  20. 2026-08-16 05:19 UTCVendor advisory
  21. 2026-08-16 02:14 UTCEPSS rescore
  22. 2026-08-15 01:30 UTCEPSS rescore
  23. 2026-08-14 16:02 UTCVendor advisory
  24. 2026-08-14 03:48 UTCEG score recompute
  25. 2026-08-14 03:48 UTCVendor advisory
  26. 2026-08-13 22:00 UTCEPSS rescore
  27. 2026-08-13 06:43 UTCVendor advisory
  28. 2026-08-12 17:25 UTCEG score recompute
  29. 2026-08-12 17:25 UTCVendor advisory
  30. 2026-08-12 13:51 UTCEPSS rescore
  31. 2026-08-12 01:38 UTCEG score recompute
  32. 2026-08-12 01:38 UTCVendor advisory
  33. 2026-08-11 13:43 UTCEPSS rescore
  34. 2026-08-11 13:23 UTCVendor advisory
  35. 2026-08-11 12:24 UTCVendor advisory
  36. 2026-08-11 01:50 UTCEG score recompute
  37. 2026-08-11 00:00 UTCEPSS rescore
  38. 2026-08-09 15:14 UTCEG score recompute
  39. 2026-08-09 13:46 UTCEPSS rescore
  40. 2026-08-09 02:59 UTCEG score recompute
  41. 2026-08-08 16:37 UTCEPSS rescore
  42. 2026-08-08 03:07 UTCEG score recompute
  43. 2026-08-07 02:37 UTCEG score recompute
  44. 2026-08-06 13:46 UTCEPSS rescore
  45. 2026-08-05 22:36 UTCEG score recompute
  46. 2026-08-05 19:17 UTCEPSS rescore
  47. 2026-08-04 15:10 UTCEPSS rescore
  48. 2026-08-04 10:38 UTCEPSS rescore
  49. 2026-08-03 20:25 UTCEG score recompute
  50. 2026-08-03 10:36 UTCEPSS rescore
  51. 2026-08-02 05:41 UTCEG score recompute
  52. 2026-08-02 02:27 UTCEPSS rescore
  53. 2026-08-01 04:16 UTCEPSS rescore
  54. 2026-07-30 16:28 UTCEPSS rescore
  55. 2026-07-30 01:30 UTCEPSS rescore
  56. 2026-07-28 15:36 UTCEPSS rescore
  57. 2026-07-27 14:13 UTCEPSS rescore
  58. 2026-07-26 14:54 UTCEPSS rescore
  59. 2026-07-26 14:54 UTCEPSS rescore
  60. 2026-07-25 14:18 UTCEPSS rescore
  61. 2026-07-24 14:17 UTCEPSS rescore
  62. 2026-07-23 14:18 UTCEPSS rescore
  63. 2026-07-23 03:12 UTCEG score recompute
  64. 2026-07-22 14:08 UTCEPSS rescore
  65. 2026-07-21 15:24 UTCEPSS rescore
  66. 2026-07-20 17:08 UTCEPSS rescore
  67. 2026-07-20 11:04 UTCOSV refresh
  68. 2026-07-19 14:31 UTCEPSS rescore
  69. 2026-07-19 02:29 UTCEPSS rescore
  70. 2026-07-18 10:04 UTCEPSS rescore
  71. 2026-07-16 17:03 UTCEPSS rescore
  72. 2026-07-15 16:57 UTCEPSS rescore
  73. 2026-07-15 02:25 UTCNVD updateCVSS v3 → 7.5
  74. 2026-07-15 02:00 UTCEPSS rescore
  75. 2026-07-15 01:21 UTCMITRE cvelistV5CVSS v3 → 8

Related CVEs(same vendor + same CWE)

Frequently asked(5)

What is CVE-2026-43003?
CVE-2026-43003 is a high vulnerability published on May 1, 2026. An issue was discovered in OpenStack ironic-python-agent 1.0.0 through 11.5.0. Ironic Python Agent (IPA) sometimes executes grub-install from within a chroot of the deployed partition image, leading to code execution in the case of a malicious image.
When was CVE-2026-43003 disclosed?
CVE-2026-43003 was first published in the National Vulnerability Database on May 1, 2026, with the most recent update on September 9, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-43003 actively exploited?
CVE-2026-43003 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 39.3% of all scored CVEs.
What is the CVSS score of CVE-2026-43003?
CVE-2026-43003 has a CVSS v3 base score of 7.5 (NVD). EchelonGraph synthesises NVD + CISA KEV + FIRST EPSS + GHSA into a combined EG score of 8.0.
How do I remediate CVE-2026-43003?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-43003, 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

See which npm, PyPI, Go, and Maven packages are affected by CVE-2026-43003

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