CVE-2026-84233

HIGHPre-NVD 7.07.0—
EchelonGraph scoreHIGH confidence

Score 7.0 from GitHub Security Advisory (severity: HIGH) published 2026-09-01. a secondary CVSS source baseline 7.0; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 4 sources updated this week
7.0EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 7.0Exploit: None knownExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

A flaw was found in rpm. A local attacker could supply a specially crafted .gem filename containing RPM macro syntax. When a user or automated workflow invokes rpmuncompress -x on this file, the macro expansion occurs during command construction. This allows the attacker to execute arbitrary commands with the privileges of the invoking account, leading to a compromise of confidentiality, integrity, and availability.

CVSS v3
7.0
EG Score
7.0(high)
EG Risk
32(Track)
EG Risk 32/100SSVC: 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
Severity70% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
3%
KEV
Not listed

Published

September 1, 2026

Last Modified

September 4, 2026

Advisory Details (2)

Auto-updated Sep 1, 2026
Patch available. Sources: redhat.
redhat

2478409 – (CVE-2026-84233) CVE-2026-84233 rpm: Command Execution via Macro Expansion in `rpmuncompress -x` for Crafted `.gem` Filenames

https://bugzilla.redhat.com/show_bug.cgi?id=2478409
redhat Patch Available

CVE-2026-84233 - Red Hat Customer Portal

Affected: Red Hat Enterprise Linux 8 or OpenShift Container Platform 4, is affected by this vulnerability and a fix may be released to a

https://access.redhat.com/security/cve/CVE-2026-84233

Vendor Advisories for CVE-2026-84233(2)

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

Affected Packages

(3 across 3 ecosystems)
Debian:12(1)
PackageVulnerable rangeFixed inDependents
rpm4.18.0+dfsg-1 ... 6.1.0-1 (20 versions)——
Debian:13(1)
PackageVulnerable rangeFixed inDependents
rpm4.20.1+dfsg-3, 6.0.0-1, 6.0.0-2, 6.0.1-1, 6.1.0-1——
Debian:14(1)
PackageVulnerable rangeFixed inDependents
rpm4.20.1+dfsg-3, 6.0.0-1, 6.0.0-2, 6.0.1-1, 6.1.0-1——

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 41× in last 7d / 94× 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.

  1. 2026-09-19 10:16 UTCVendor advisory
  2. 2026-09-19 10:16 UTCGHSA enrichment
  3. 2026-09-18 21:45 UTCEG score recompute
  4. 2026-09-18 21:45 UTCVendor advisory
  5. 2026-09-18 21:45 UTCGHSA enrichment
  6. 2026-09-18 19:28 UTCEPSS rescore
  7. 2026-09-18 09:15 UTCVendor advisory
  8. 2026-09-18 09:15 UTCGHSA enrichment
  9. 2026-09-17 20:44 UTCEG score recompute
  10. 2026-09-17 20:44 UTCVendor advisory
  11. 2026-09-17 20:44 UTCGHSA enrichment
  12. 2026-09-17 19:32 UTCEPSS rescore
  13. 2026-09-17 07:57 UTCVendor advisory
  14. 2026-09-17 07:57 UTCGHSA enrichment
  15. 2026-09-16 19:26 UTCEG score recompute
  16. 2026-09-16 19:26 UTCVendor advisory
  17. 2026-09-16 19:26 UTCGHSA enrichment
  18. 2026-09-16 14:09 UTCEPSS rescore
  19. 2026-09-16 06:53 UTCEG score recompute
  20. 2026-09-16 06:53 UTCVendor advisory
  21. 2026-09-16 06:53 UTCGHSA enrichment
  22. 2026-09-16 05:15 UTCEPSS rescore
  23. 2026-09-15 18:22 UTCVendor advisory
  24. 2026-09-15 18:22 UTCGHSA enrichment
  25. 2026-09-15 05:43 UTCEG score recompute
Show 69 more
  1. 2026-09-15 05:43 UTCVendor advisory
  2. 2026-09-15 05:42 UTCGHSA enrichment
  3. 2026-09-15 03:12 UTCEPSS rescore
  4. 2026-09-15 03:12 UTCEPSS rescore
  5. 2026-09-14 17:10 UTCVendor advisory
  6. 2026-09-14 17:10 UTCGHSA enrichment
  7. 2026-09-14 04:39 UTCEG score recompute
  8. 2026-09-14 04:39 UTCVendor advisory
  9. 2026-09-14 04:39 UTCGHSA enrichment
  10. 2026-09-13 16:08 UTCVendor advisory
  11. 2026-09-13 16:08 UTCGHSA enrichment
  12. 2026-09-13 03:37 UTCVendor advisory
  13. 2026-09-13 03:37 UTCGHSA enrichment
  14. 2026-09-12 15:06 UTCEG score recompute
  15. 2026-09-12 15:06 UTCVendor advisory
  16. 2026-09-12 15:06 UTCGHSA enrichment
  17. 2026-09-12 02:35 UTCVendor advisory
  18. 2026-09-12 02:35 UTCGHSA enrichment
  19. 2026-09-11 14:01 UTCEG score recompute
  20. 2026-09-11 14:01 UTCGHSA enrichment
  21. 2026-09-11 01:30 UTCGHSA enrichment
  22. 2026-09-10 12:59 UTCEG score recompute
  23. 2026-09-10 12:59 UTCGHSA enrichment
  24. 2026-09-10 00:28 UTCGHSA enrichment
  25. 2026-09-09 11:54 UTCVendor advisory
  26. 2026-09-09 11:54 UTCGHSA enrichment
  27. 2026-09-08 23:23 UTCEG score recompute
  28. 2026-09-08 23:23 UTCVendor advisory
  29. 2026-09-08 23:23 UTCGHSA enrichment
  30. 2026-09-08 22:01 UTCEPSS rescore
  31. 2026-09-08 06:43 UTCVendor advisory
  32. 2026-09-08 06:43 UTCGHSA enrichment
  33. 2026-09-07 18:12 UTCEG score recompute
  34. 2026-09-07 18:12 UTCVendor advisory
  35. 2026-09-07 18:12 UTCGHSA enrichment
  36. 2026-09-07 05:41 UTCGHSA enrichment
  37. 2026-09-06 17:10 UTCEG score recompute
  38. 2026-09-06 17:09 UTCGHSA enrichment
  39. 2026-09-06 13:48 UTCEPSS rescore
  40. 2026-09-06 04:35 UTCGHSA enrichment
  41. 2026-09-05 16:05 UTCEG score recompute
  42. 2026-09-05 16:05 UTCGHSA enrichment
  43. 2026-09-05 15:31 UTCEPSS rescore
  44. 2026-09-05 03:34 UTCGHSA enrichment
  45. 2026-09-04 15:03 UTCEG score recompute
  46. 2026-09-04 15:03 UTCGHSA enrichment
  47. 2026-09-04 05:07 UTCEPSS rescore
  48. 2026-09-04 02:28 UTCEG score recompute
  49. 2026-09-04 02:27 UTCGHSA enrichment
  50. 2026-09-04 02:04 UTCEG score recompute
  51. 2026-09-04 02:04 UTCGHSA enrichment
  52. 2026-09-03 18:54 UTCGHSA enrichment
  53. 2026-09-03 06:09 UTCGHSA enrichment
  54. 2026-09-02 17:38 UTCEG score recompute
  55. 2026-09-02 17:38 UTCGHSA enrichment
  56. 2026-09-02 16:39 UTCGHSA enrichment
  57. 2026-09-02 16:03 UTCGHSA enrichment
  58. 2026-09-02 15:09 UTCEG score recompute
  59. 2026-09-02 15:08 UTCGHSA enrichment
  60. 2026-09-02 14:12 UTCEPSS rescore
  61. 2026-09-02 09:38 UTCGHSA enrichment
  62. 2026-09-01 21:08 UTCEG score recompute
  63. 2026-09-01 21:08 UTCGHSA enrichment
  64. 2026-09-01 16:09 UTCEG score recompute
  65. 2026-09-01 16:09 UTCGHSA enrichment
  66. 2026-09-01 15:38 UTCEG score recompute
  67. 2026-09-01 15:38 UTCGHSA enrichment
  68. 2026-09-01 15:03 UTCEG score recompute
  69. 2026-09-01 15:02 UTCMITRE cvelistV5first tracked

Related CVEs(same vendor + same CWE)

Frequently asked(5)

What is CVE-2026-84233?
CVE-2026-84233 is a high vulnerability published on September 1, 2026. A flaw was found in rpm. A local attacker could supply a specially crafted .gem filename containing RPM macro syntax. When a user or automated workflow invokes rpmuncompress -x on this file, the macro expansion occurs during command construction. This allows the attacker to execute arbitrary…
When was CVE-2026-84233 disclosed?
CVE-2026-84233 was first published in the National Vulnerability Database on September 1, 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-2026-84233 actively exploited?
CVE-2026-84233 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 97.0% of all scored CVEs.
What is the CVSS score of CVE-2026-84233?
CVE-2026-84233 has a CVSS v3 base score of 7.0 (NVD).
How do I remediate CVE-2026-84233?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-84233, 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-2026-84233

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