CVE-2026-54411

MEDIUMPre-NVD 5.95.9—
EchelonGraph scoreMEDIUM confidence

Score 5.9 from GitHub Security Advisory published 2026-06-14. a secondary CVSS source baseline 5.9; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 4 sources updated this week
5.9EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 5.9Exploit: None knownExposed: 0

A fix is available — apply it.

Linux-PAM through 1.7.2 contains an observable timing discrepancy (CWE-208) in the pam_userdb module's plaintext-password comparison path in modules/pam_userdb/pam_userdb.c that allows a local or network-adjacent attacker able to repeatedly drive authentication through a calling service to recover the plaintext password of a target account by measuring response-timing differences.

CVSS v3
5.9
EG Score
5.9(medium)
EG Risk
27(Track)
EG Risk 27/100SSVC: 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
Severity59% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
25%
KEV
Not listed

Published

June 14, 2026

Last Modified

August 10, 2026

Advisory Details (4)

Auto-updated Jun 15, 2026
No patch confirmed yet.
generic

CWE - CWE-208: Observable Timing Discrepancy (4.20)

https://cwe.mitre.org/data/definitions/208.html
generic

linux-pam/libpam/include/pam_inline.h at master · linux-pam/linux-pam · GitHub

https://github.com/linux-pam/linux-pam/blob/master/libpam/include/pam_inline.h
generic

linux-pam/modules/pam_userdb/pam_userdb.c at master · linux-pam/linux-pam · GitHub

https://github.com/linux-pam/linux-pam/blob/master/modules/pam_userdb/pam_userdb.c#L327
generic

GitHub - linux-pam/linux-pam: Linux PAM (Pluggable Authentication Modules for Linux) project · GitHub

https://github.com/linux-pam/linux-pam

Vendor Advisories for CVE-2026-54411(16)

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

Patch Availability(15)

Vendor / EcosystemFixed in / PatchReleasedSource
ubuntulibpam0g-dev (1.4.0-11ubuntu2.7) @ jammy2026-09-14ubuntu
redhatpam-0:1.5.1-28.el9_8.12026-09-08redhat
redhatpam-0:1.3.1-14.el8_4.32026-08-31redhat
redhatpam-0:1.5.1-15.el9_2.32026-08-31redhat
redhatpam-0:1.5.1-24.el9_4.22026-08-31redhat
redhatpam-0:1.5.1-26.el9_6.12026-08-31redhat
redhatpam-0:1.3.1-16.el8_6.42026-08-31redhat
redhatpam-0:1.3.1-26.el8_8.32026-08-31redhat
redhatpam-0:1.1.8-23.el7_9.32026-08-31redhat
redhatpam-0:1.6.1-8.el10_0.12026-08-31redhat
redhatpam-0:1.5.1-27.el9_8.12026-08-26redhat
redhatpam-0:1.6.1-9.el10_2.12026-08-25redhat
redhatpam-0:1.3.1-40.el8_102026-08-18redhat
redhatpam-main-1.7.2-2.2.hum12026-07-02redhat
redhatpam-main-1.7.2-1.1.hum12026-04-10redhat

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

(4 across 4 ecosystems)
Debian:11(1)
PackageVulnerable rangeFixed inDependents
pam1.4.0-10 ... 1.7.0-8 (34 versions)——
Debian:12(1)
PackageVulnerable rangeFixed inDependents
pam1.5.2-6 ... 1.7.0-8 (24 versions)——
Debian:13(1)
PackageVulnerable rangeFixed inDependents
pam1.7.0-5, 1.7.0-6, 1.7.0-7, 1.7.0-8——
Debian:14(1)
PackageVulnerable rangeFixed inDependents
pam1.7.0-5, 1.7.0-6, 1.7.0-7, 1.7.0-8——

Weakness Classification(1)

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

Additional Vendor Advisories

(1)

Vendors that published advisories for this CVE beyond the curated set above. Broader coverage but minimal per-row detail — click through for the original advisory.

Data Freshness Timeline

(refreshed 8× in last 7d / 39× 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 246 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. 2026-09-14 03:53 UTCEG score recompute
  6. 2026-09-14 03:53 UTCVendor advisory
  7. 2026-09-14 03:53 UTCGHSA enrichment
  8. 2026-09-13 16:47 UTCEPSS rescore
  9. 2026-09-11 14:53 UTCEPSS rescore
  10. 2026-09-10 09:35 UTCEPSS rescore
  11. 2026-09-08 22:01 UTCEPSS rescore
  12. 2026-09-06 13:47 UTCEPSS rescore
  13. 2026-09-04 05:06 UTCEPSS rescore
  14. 2026-09-02 14:12 UTCEPSS rescore
  15. 2026-09-01 13:54 UTCEPSS rescore
  16. 2026-08-30 23:31 UTCEG score recompute
  17. 2026-08-30 23:31 UTCVendor advisory
  18. 2026-08-30 23:31 UTCGHSA enrichment
  19. 2026-08-30 19:17 UTCEPSS rescore
  20. 2026-08-30 01:22 UTCEPSS rescore
  21. 2026-08-28 21:41 UTCEPSS rescore
  22. 2026-08-27 14:25 UTCEPSS rescore
  23. 2026-08-26 14:46 UTCEPSS rescore
  24. 2026-08-25 13:49 UTCEPSS rescore
  25. 2026-08-24 23:41 UTCEG score recompute
Show 75 more
  1. 2026-08-24 23:41 UTCVendor advisory
  2. 2026-08-24 23:41 UTCGHSA enrichment
  3. 2026-08-23 09:52 UTCEG score recompute
  4. 2026-08-23 09:52 UTCVendor advisory
  5. 2026-08-23 09:52 UTCGHSA enrichment
  6. 2026-08-23 00:19 UTCEPSS rescore
  7. 2026-08-21 23:49 UTCEPSS rescore
  8. 2026-08-21 17:48 UTCEG score recompute
  9. 2026-08-21 17:48 UTCVendor advisory
  10. 2026-08-21 17:48 UTCGHSA enrichment
  11. 2026-08-20 22:55 UTCEPSS rescore
  12. 2026-08-20 16:26 UTCEG score recompute
  13. 2026-08-20 16:26 UTCVendor advisory
  14. 2026-08-20 16:26 UTCGHSA enrichment
  15. 2026-08-19 17:04 UTCEPSS rescore
  16. 2026-08-19 13:33 UTCEG score recompute
  17. 2026-08-19 13:33 UTCVendor advisory
  18. 2026-08-19 13:33 UTCGHSA enrichment
  19. 2026-08-18 13:48 UTCEPSS rescore
  20. 2026-08-17 13:47 UTCEPSS rescore
  21. 2026-08-16 22:41 UTCEG score recompute
  22. 2026-08-16 22:41 UTCVendor advisory
  23. 2026-08-16 22:41 UTCGHSA enrichment
  24. 2026-08-16 14:56 UTCEPSS rescore
  25. 2026-08-16 02:14 UTCEPSS rescore
  26. 2026-08-15 16:32 UTCEG score recompute
  27. 2026-08-15 16:32 UTCVendor advisory
  28. 2026-08-15 16:32 UTCGHSA enrichment
  29. 2026-08-15 01:30 UTCEPSS rescore
  30. 2026-08-14 15:43 UTCEG score recompute
  31. 2026-08-14 15:43 UTCVendor advisory
  32. 2026-08-14 15:43 UTCGHSA enrichment
  33. 2026-08-13 22:00 UTCEPSS rescore
  34. 2026-08-13 14:54 UTCVendor advisory
  35. 2026-08-13 14:54 UTCGHSA enrichment
  36. 2026-08-12 14:06 UTCEG score recompute
  37. 2026-08-12 14:06 UTCVendor advisory
  38. 2026-08-12 14:06 UTCGHSA enrichment
  39. 2026-08-12 13:51 UTCEPSS rescore
  40. 2026-08-11 13:13 UTCEG score recompute
  41. 2026-08-11 13:13 UTCVendor advisory
  42. 2026-08-11 13:13 UTCGHSA enrichment
  43. 2026-08-11 00:00 UTCEPSS rescore
  44. 2026-08-10 12:25 UTCEG score recompute
  45. 2026-08-10 12:25 UTCVendor advisory
  46. 2026-08-10 12:25 UTCGHSA enrichment
  47. 2026-08-10 11:43 UTCVendor advisory
  48. 2026-08-10 11:42 UTCGHSA enrichment
  49. 2026-08-10 11:23 UTCVendor advisory
  50. 2026-08-10 11:23 UTCGHSA enrichment
  51. 2026-08-09 17:03 UTCEG score recompute
  52. 2026-08-09 17:03 UTCVendor advisory
  53. 2026-08-09 17:03 UTCGHSA enrichment
  54. 2026-08-09 13:46 UTCEPSS rescore
  55. 2026-08-08 16:37 UTCEPSS rescore
  56. 2026-08-08 16:15 UTCEG score recompute
  57. 2026-08-08 16:15 UTCVendor advisory
  58. 2026-08-08 16:15 UTCGHSA enrichment
  59. 2026-08-07 15:26 UTCVendor advisory
  60. 2026-08-07 15:26 UTCGHSA enrichment
  61. 2026-08-06 14:38 UTCEG score recompute
  62. 2026-08-06 14:38 UTCVendor advisory
  63. 2026-08-06 14:38 UTCGHSA enrichment
  64. 2026-08-06 13:47 UTCEPSS rescore
  65. 2026-08-05 19:17 UTCEPSS rescore
  66. 2026-08-05 13:50 UTCEG score recompute
  67. 2026-08-05 13:50 UTCVendor advisory
  68. 2026-08-05 13:50 UTCGHSA enrichment
  69. 2026-08-04 16:47 UTCEG score recompute
  70. 2026-08-04 16:47 UTCVendor advisory
  71. 2026-08-04 16:47 UTCGHSA enrichment
  72. 2026-08-04 15:10 UTCEPSS rescore
  73. 2026-08-04 10:39 UTCEPSS rescore
  74. 2026-08-03 15:51 UTCVendor advisory
  75. 2026-08-03 15:51 UTCGHSA enrichment

Frequently asked(5)

What is CVE-2026-54411?
CVE-2026-54411 is a medium vulnerability published on June 14, 2026. Linux-PAM through 1.7.2 contains an observable timing discrepancy (CWE-208) in the pamuserdb module's plaintext-password comparison path in modules/pamuserdb/pam_userdb.c that allows a local or network-adjacent attacker able to repeatedly drive authentication through a calling service to recover…
When was CVE-2026-54411 disclosed?
CVE-2026-54411 was first published in the National Vulnerability Database on June 14, 2026, with the most recent update on August 10, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-54411 actively exploited?
CVE-2026-54411 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 74.7% of all scored CVEs.
What is the CVSS score of CVE-2026-54411?
CVE-2026-54411 has a CVSS v3 base score of 5.9 (NVD).
How do I remediate CVE-2026-54411?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-54411, 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-2026-54411

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