CVE-2026-54231

MEDIUMPre-NVD 5.55.5
EchelonGraph scoreMEDIUM confidence

“—” beside the score: it is equal to the CVSS score beside it.

Score 5.5 from GitHub Security Advisory published 2026-06-13. A secondary CVSS source baseline 5.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: EPSS, GitHub Security Advisory, a secondary CVSS source
5.5EG
EchelonGraph verdictMonitorRemediate within your standard update timelines (the SSVC decision on this page).
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0.2%CVSS: 5.5Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

A content injection vulnerability was found in the ABRT post-create event handler scripts in libreport. The event script queries the systemd journal for log entries matching the crashed process and writes the results to files in the dump directory without sanitizing embedded control characters. A local user can inject arbitrary content into the journal output by embedding newline characters in syslog messages, controlling the content that root writes to dump directory files.

CVSS v3
5.5
EG Score
5.5MEDIUMmedium confidence
EG Risk
25
EG Risk 25/100

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 (value × EchelonGraph’s weight)
Severity55% × 45%
The EG Score, 5.5 of 10.
Exploitation0.2% × 40%
FIRST EPSS: the 30-day exploitation probability when EchelonGraph scored this CVE.
Automatability0% × 15%
CISA's SSVC Automatable value: no (Vulnrichment).
SSVC (CISA's decision table, applied by EchelonGraph): Track at every mission impact level.
Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE.
Action: A fix is available. Apply it within your standard update timelines.
EPSS PROB
0.2%
EPSS %ILE
8th
KEV
Not listed

SSVC (CISA's decision table, applied by EchelonGraph)Track at every mission impact level.

A fix is available. Apply it within your standard update timelines.

Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE. Mission impact is CISA's Mission & Well-being decision point, and only you can judge it. CISA's table makes it high when Mission Prevalence is Essential — the vulnerable component "directly provides capabilities that constitute at least one MEF for at least one entity" (MEF: mission essential function) — or when Public Well-Being Impact is Irreversible: "multiple fatalities are likely", the cyber-physical system "is likely lost or destroyed", "extreme or serious externalities" are imposed on other parties, or social systems such as elections or the financial grid "are destabilized and potentially collapse". CISA's decision table

BOD 26-04 (CISA's remediation timeline, Table 1)60 days if the affected system is publicly exposed; Fix on system upgrade if it is not.

In CISA KEV no (CISA's KEV catalog) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). Whether your system is publicly exposed is yours to answer. BOD 26-04 binds US Federal Civilian Executive Branch agencies; for anyone else it is CISA's published timeline, a reference rather than an obligation. The directive · how EchelonGraph applies it

Published

June 13, 2026

Last Modified

September 21, 2026

Advisory Details (2)

Auto-updated Jun 15, 2026
Patch available. Sources: redhat.
Red Hat

2488571 – (CVE-2026-54231) CVE-2026-54231 abrt: unsanitized systemd journal content written to dump directory files enables content injection

https://bugzilla.redhat.com/show_bug.cgi?id=2488571
Red HatMentions a patch (unverified)

cve-details

https://access.redhat.com/security/cve/CVE-2026-54231

Vendor Advisories for CVE-2026-54231(5)

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

Patch Availability(1)

Vendor / EcosystemFix (by version range) / PatchReleasedSource
redhatabrt-0:2.10.9-26.el8_102026-08-12redhat

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.

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 11× in last 7d / 42× in last 30d)

Each row is a time one of our pipelines fetched, updated or re-scored this CVE. 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. An arrow marks a change the record states ("CVSS v3 → 9.1"); EPSS and GHSA rows show the values recorded at that time, not what changed (EPSS values are rounded; hover one for the exact figures). Most recent first.

Showing the most recent 100 of 242 refreshes on record for this CVE.

A repeat, a row identical to one the same pipeline wrote less than 10 seconds earlier, is not a separate refresh and is not counted. None are among the latest 100 rows. The 142 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-10-15 16:32 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  2. 2026-10-14 16:33 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  3. 2026-10-13 16:34 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  4. 2026-10-12 16:34 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  5. 2026-10-12 15:56 UTCEG score recompute
  6. 2026-10-11 19:39 UTCEG score recompute
  7. 2026-10-11 16:55 UTCEG score recompute
  8. 2026-10-11 14:18 UTCEG score recompute
  9. 2026-10-11 13:49 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  10. 2026-10-10 20:00 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  11. 2026-10-09 20:07 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  12. 2026-10-08 17:12 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  13. 2026-10-07 23:48 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  14. 2026-10-06 15:18 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  15. 2026-10-05 17:43 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  16. 2026-10-04 23:22 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  17. 2026-10-03 14:26 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  18. 2026-10-02 17:56 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  19. 2026-10-01 19:50 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  20. 2026-09-30 15:03 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  21. 2026-09-29 15:22 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  22. 2026-09-28 13:51 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  23. 2026-09-27 13:48 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  24. 2026-09-26 15:59 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  25. 2026-09-24 14:04 UTCEPSS rescoreEPSS 0.2% · 7th percentile
Show 75 more
  1. 2026-09-23 17:54 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  2. 2026-09-21 06:23 UTCEG score recompute
  3. 2026-09-21 06:23 UTCVendor advisory
  4. 2026-09-21 06:23 UTCGHSA enrichmentGHSA-p464-2mqm-5h37 · GitHub CVSS 5.5
  5. 2026-09-21 05:55 UTCEG score recompute
  6. 2026-09-21 05:55 UTCVendor advisory
  7. 2026-09-21 05:55 UTCGHSA enrichmentGHSA-p464-2mqm-5h37 · GitHub CVSS 5.5
  8. 2026-09-21 04:22 UTCEG score recompute
  9. 2026-09-21 04:22 UTCVendor advisory
  10. 2026-09-21 04:21 UTCGHSA enrichmentGHSA-p464-2mqm-5h37 · GitHub CVSS 5.5
  11. 2026-09-21 04:15 UTCEG score recompute
  12. 2026-09-21 04:15 UTCVendor advisory
  13. 2026-09-21 04:15 UTCGHSA enrichmentGHSA-p464-2mqm-5h37 · GitHub CVSS 5.5
  14. 2026-09-20 20:16 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  15. 2026-09-18 19:28 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  16. 2026-09-17 19:31 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  17. 2026-09-16 14:08 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  18. 2026-09-16 05:15 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  19. 2026-09-14 03:54 UTCEG score recompute
  20. 2026-09-14 03:54 UTCVendor advisory
  21. 2026-09-14 03:54 UTCGHSA enrichmentGHSA-p464-2mqm-5h37 · GitHub CVSS 5.5
  22. 2026-09-13 16:47 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  23. 2026-09-11 14:53 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  24. 2026-09-10 09:35 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  25. 2026-09-08 22:01 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  26. 2026-09-07 16:01 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  27. 2026-09-06 13:47 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  28. 2026-09-04 05:06 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  29. 2026-09-02 14:12 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  30. 2026-09-01 13:54 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  31. 2026-09-01 04:40 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  32. 2026-08-30 23:32 UTCEG score recompute
  33. 2026-08-30 23:32 UTCVendor advisory
  34. 2026-08-30 23:32 UTCGHSA enrichmentGHSA-p464-2mqm-5h37 · GitHub CVSS 5.5
  35. 2026-08-30 19:17 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  36. 2026-08-30 01:22 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  37. 2026-08-28 21:41 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  38. 2026-08-27 14:25 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  39. 2026-08-26 20:42 UTCEG score recompute
  40. 2026-08-26 20:42 UTCVendor advisory
  41. 2026-08-26 20:42 UTCGHSA enrichmentGHSA-p464-2mqm-5h37 · GitHub CVSS 5.5
  42. 2026-08-26 14:46 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  43. 2026-08-24 23:42 UTCEG score recompute
  44. 2026-08-24 23:42 UTCVendor advisory
  45. 2026-08-24 23:42 UTCGHSA enrichmentGHSA-p464-2mqm-5h37 · GitHub CVSS 5.5
  46. 2026-08-23 09:56 UTCEG score recompute
  47. 2026-08-23 09:56 UTCVendor advisory
  48. 2026-08-23 09:56 UTCGHSA enrichmentGHSA-p464-2mqm-5h37 · GitHub CVSS 5.5
  49. 2026-08-23 00:19 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  50. 2026-08-21 23:49 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  51. 2026-08-21 17:48 UTCEG score recompute
  52. 2026-08-21 17:48 UTCVendor advisory
  53. 2026-08-21 17:48 UTCGHSA enrichmentGHSA-p464-2mqm-5h37 · GitHub CVSS 5.5
  54. 2026-08-20 22:55 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  55. 2026-08-20 16:26 UTCEG score recompute
  56. 2026-08-20 16:26 UTCVendor advisory
  57. 2026-08-20 16:26 UTCGHSA enrichmentGHSA-p464-2mqm-5h37 · GitHub CVSS 5.5
  58. 2026-08-19 17:04 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  59. 2026-08-19 13:34 UTCEG score recompute
  60. 2026-08-19 13:34 UTCVendor advisory
  61. 2026-08-19 13:33 UTCGHSA enrichmentGHSA-p464-2mqm-5h37 · GitHub CVSS 5.5
  62. 2026-08-18 13:48 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  63. 2026-08-17 13:47 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  64. 2026-08-16 23:13 UTCEG score recompute
  65. 2026-08-16 23:13 UTCVendor advisory
  66. 2026-08-16 23:13 UTCGHSA enrichmentGHSA-p464-2mqm-5h37 · GitHub CVSS 5.5
  67. 2026-08-16 14:56 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  68. 2026-08-16 02:14 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  69. 2026-08-15 23:33 UTCEG score recompute
  70. 2026-08-15 23:33 UTCVendor advisory
  71. 2026-08-15 23:33 UTCGHSA enrichmentGHSA-p464-2mqm-5h37 · GitHub CVSS 5.5
  72. 2026-08-15 01:30 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  73. 2026-08-14 21:47 UTCVendor advisory
  74. 2026-08-14 21:47 UTCGHSA enrichmentGHSA-p464-2mqm-5h37 · GitHub CVSS 5.5
  75. 2026-08-13 22:10 UTCEG score recompute

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Frequently asked(5)

What is CVE-2026-54231?
CVE-2026-54231 is a medium-severity vulnerability; its CVE record was published on June 13, 2026. A content injection vulnerability was found in the ABRT post-create event handler scripts in libreport. The event script queries the systemd journal for log entries matching the crashed process and writes the results to files in the dump directory without sanitizing embedded control characters. A…
When was CVE-2026-54231 made public?
CVE-2026-54231 was made public on May 4, 2026: that is the date its CVE record's CNA, Red Hat, Inc., gives for when the vulnerability was made public. The CVE record itself was published on June 13, 2026. EchelonGraph's copy of the record carries a last-modified date of September 21, 2026; the record at its source may have been updated since.
Is CVE-2026-54231 actively exploited?
CVE-2026-54231 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.2% probability of exploitation in the next 30 days (8th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-54231?
CVE-2026-54231 has a CVSS base score of 5.5 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-54231?
A fix for CVE-2026-54231 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-54231 are linked in the Vendor Advisories panel on this page.

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