CVE-2026-84837

HIGHPre-NVD 7.87.8—
EchelonGraph scoreHIGH confidence

Score 7.8 from GitHub Security Advisory (severity: HIGH) published 2026-09-02. a secondary CVSS source baseline 7.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 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: 1%CVSS: 7.8Exploit: 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. An attacker can exploit a command injection vulnerability by influencing the path or filename of a tarball processed by rpmbuild -t* to include shell metacharacters. This is particularly relevant in automated build or continuous integration (CI) workflows that ingest externally supplied artifact names. Successful exploitation allows for arbitrary command execution with the privileges of the build user, which could lead to information disclosure or disruption of the build environment.

CVSS v3
7.8
EG Score
7.8(high)
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
Severity78% × 45%
Exploitation1% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
1%
EPSS %ILE
67%
KEV
Not listed

Published

September 2, 2026

Last Modified

September 3, 2026

Advisory Details (2)

Auto-updated Sep 2, 2026
Patch available. Sources: redhat.
redhat

2478408 – (CVE-2026-84837) CVE-2026-84837 rpm: Command Injection in `rpmbuild -t*` (`getTarSpec`) via Unescaped Tarball Path

https://bugzilla.redhat.com/show_bug.cgi?id=2478408
redhat Patch Available

CVE-2026-84837 - 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-2026-84837

Vendor Advisories for CVE-2026-84837(1)

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 26× in last 7d / 86× 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. 2026-09-25 02:51 UTCGHSA enrichment
  2. 2026-09-24 14:25 UTCEG score recompute
  3. 2026-09-24 14:25 UTCGHSA enrichment
  4. 2026-09-24 14:04 UTCEPSS rescore
  5. 2026-09-24 01:52 UTCEG score recompute
  6. 2026-09-24 01:52 UTCGHSA enrichment
  7. 2026-09-23 17:54 UTCEPSS rescore
  8. 2026-09-23 13:27 UTCGHSA enrichment
  9. 2026-09-23 01:01 UTCEG score recompute
  10. 2026-09-23 01:01 UTCGHSA enrichment
  11. 2026-09-22 16:01 UTCEPSS rescore
  12. 2026-09-22 12:35 UTCGHSA enrichment
  13. 2026-09-22 00:10 UTCEG score recompute
  14. 2026-09-22 00:10 UTCGHSA enrichment
  15. 2026-09-21 21:09 UTCEPSS rescore
  16. 2026-09-21 11:44 UTCGHSA enrichment
  17. 2026-09-20 23:19 UTCEG score recompute
  18. 2026-09-20 23:19 UTCGHSA enrichment
  19. 2026-09-20 20:16 UTCEPSS rescore
  20. 2026-09-20 10:48 UTCGHSA enrichment
  21. 2026-09-19 22:23 UTCEG score recompute
  22. 2026-09-19 22:23 UTCGHSA enrichment
  23. 2026-09-19 09:57 UTCGHSA enrichment
  24. 2026-09-18 21:28 UTCEG score recompute
  25. 2026-09-18 21:28 UTCGHSA enrichment
Show 61 more
  1. 2026-09-18 19:28 UTCEPSS rescore
  2. 2026-09-18 09:03 UTCGHSA enrichment
  3. 2026-09-17 20:37 UTCEG score recompute
  4. 2026-09-17 20:37 UTCGHSA enrichment
  5. 2026-09-17 19:32 UTCEPSS rescore
  6. 2026-09-17 07:02 UTCGHSA enrichment
  7. 2026-09-16 18:36 UTCEG score recompute
  8. 2026-09-16 18:36 UTCGHSA enrichment
  9. 2026-09-16 14:09 UTCEPSS rescore
  10. 2026-09-16 05:15 UTCEPSS rescore
  11. 2026-09-16 05:07 UTCGHSA enrichment
  12. 2026-09-15 16:41 UTCGHSA enrichment
  13. 2026-09-15 04:16 UTCEG score recompute
  14. 2026-09-15 04:16 UTCGHSA enrichment
  15. 2026-09-15 03:12 UTCEPSS rescore
  16. 2026-09-15 03:12 UTCEPSS rescore
  17. 2026-09-14 15:51 UTCGHSA enrichment
  18. 2026-09-14 03:26 UTCEG score recompute
  19. 2026-09-14 03:26 UTCGHSA enrichment
  20. 2026-09-13 15:01 UTCGHSA enrichment
  21. 2026-09-13 02:36 UTCEG score recompute
  22. 2026-09-13 02:36 UTCGHSA enrichment
  23. 2026-09-12 14:10 UTCGHSA enrichment
  24. 2026-09-12 01:44 UTCEG score recompute
  25. 2026-09-12 01:44 UTCGHSA enrichment
  26. 2026-09-11 14:53 UTCEPSS rescore
  27. 2026-09-11 14:53 UTCEPSS rescore
  28. 2026-09-11 13:19 UTCEG score recompute
  29. 2026-09-11 13:19 UTCGHSA enrichment
  30. 2026-09-11 00:54 UTCGHSA enrichment
  31. 2026-09-10 12:29 UTCEG score recompute
  32. 2026-09-10 12:29 UTCGHSA enrichment
  33. 2026-09-10 00:03 UTCGHSA enrichment
  34. 2026-09-09 11:38 UTCGHSA enrichment
  35. 2026-09-08 23:13 UTCEG score recompute
  36. 2026-09-08 23:13 UTCGHSA enrichment
  37. 2026-09-08 22:01 UTCEPSS rescore
  38. 2026-09-08 10:16 UTCGHSA enrichment
  39. 2026-09-07 21:49 UTCEG score recompute
  40. 2026-09-07 21:49 UTCGHSA enrichment
  41. 2026-09-07 09:24 UTCGHSA enrichment
  42. 2026-09-06 20:56 UTCEG score recompute
  43. 2026-09-06 20:56 UTCGHSA enrichment
  44. 2026-09-06 13:48 UTCEPSS rescore
  45. 2026-09-06 08:30 UTCGHSA enrichment
  46. 2026-09-05 20:05 UTCEG score recompute
  47. 2026-09-05 20:05 UTCGHSA enrichment
  48. 2026-09-05 15:31 UTCEPSS rescore
  49. 2026-09-05 07:40 UTCGHSA enrichment
  50. 2026-09-04 19:15 UTCEG score recompute
  51. 2026-09-04 19:15 UTCGHSA enrichment
  52. 2026-09-04 06:50 UTCEG score recompute
  53. 2026-09-04 06:49 UTCGHSA enrichment
  54. 2026-09-04 05:07 UTCEPSS rescore
  55. 2026-09-03 18:19 UTCGHSA enrichment
  56. 2026-09-03 06:06 UTCEG score recompute
  57. 2026-09-03 06:06 UTCGHSA enrichment
  58. 2026-09-02 17:38 UTCEG score recompute
  59. 2026-09-02 15:58 UTCEG score recompute
  60. 2026-09-02 15:27 UTCEG score recompute
  61. 2026-09-02 15:26 UTCMITRE cvelistV5first tracked

Related CVEs(same product + same CWE)

Frequently asked(5)

What is CVE-2026-84837?
CVE-2026-84837 is a high vulnerability published on September 2, 2026. A flaw was found in rpm. An attacker can exploit a command injection vulnerability by influencing the path or filename of a tarball processed by rpmbuild -t* to include shell metacharacters. This is particularly relevant in automated build or continuous integration (CI) workflows that ingest…
When was CVE-2026-84837 disclosed?
CVE-2026-84837 was first published in the National Vulnerability Database on September 2, 2026, with the most recent update on September 3, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-84837 actively exploited?
CVE-2026-84837 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 33.2% of all scored CVEs.
What is the CVSS score of CVE-2026-84837?
CVE-2026-84837 has a CVSS v3 base score of 7.8 (NVD).
How do I remediate CVE-2026-84837?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-84837, 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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