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: 1.1%CVSS: 7.5Exploit: None knownExposed services: Not assessed

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
8.0HIGHmedium confidence
EG Risk
36
EG Risk 36/100

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%
EPSS PROB
1.1%
EPSS %ILE
65th
KEV
Not listed

Published

May 1, 2026

Last Modified

September 9, 2026

Advisory Details (2)

Auto-updated May 1, 2026
Patch available.
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(8)

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 / EcosystemFix (by version range) / 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

(7 across 5 ecosystems)
Debian:13(2)
PackageVulnerable rangeFix by version rangeDependents
ironic1:29.0.0-7, 1:29.0.5-0+deb13u1, 1:29.0.5-0+deb13u2
  • every version up to 1:29.0.5-0+deb13u3: fixed in 1:29.0.5-0+deb13u3
—
ironic-python-agent10.2.0-3 ... 13.0.0-1 (13 versions)
  • every version on: no fix on record
—
Debian:14(2)
PackageVulnerable rangeFix by version rangeDependents
ironic1:29.0.0-7 ... 1:35.0.1-6 (15 versions)
  • every version up to 1:35.0.1-7: fixed in 1:35.0.1-7
—
ironic-python-agent10.2.0-3 ... 11.5.0-2 (7 versions)
  • every version up to 11.5.0-3: fixed in 11.5.0-3
—
Debian:11(1)
PackageVulnerable rangeFix by version rangeDependents
ironic1:16.0.3-1 ... 1:35.0.1-8 (66 versions)
  • every version on: no fix on record
—
Debian:12(1)
PackageVulnerable rangeFix by version rangeDependents
ironic1:21.1.0-3 ... 1:21.4.4-0+deb12u1 (8 versions)
  • every version up to 1:21.4.4-0+deb12u2: fixed in 1:21.4.4-0+deb12u2
—
PyPI(1)
PackageVulnerable rangeFix by version rangeDependents
ironic-python-agent1.0.0 ... 9.9.0 (120 versions)
  • 1.0.0 up to 11.6.0: fixed in 11.6.0
—

Weakness Classification(2)

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

Data Freshness Timeline

(refreshed 7× in last 7d / 23× 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 204 total refreshes for this CVE.

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

Related CVEs(same product + 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 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 1.1% probability of exploitation in the next 30 days (65th percentile of EPSS-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 (HIGH).
How do I remediate CVE-2026-43003?
A fix for CVE-2026-43003 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-43003 are linked in the Vendor Advisories panel on this page.

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