CVE-2026-58101

HIGHPre-NVD 7.57.5—
EchelonGraph scoreMEDIUM confidence

Score 7.5 from GitHub Security Advisory (severity: HIGH) published 2026-07-14. CISA-ADP (Vulnrichment) CVSS v3.1 baseline 7.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cisa-adp, epss, ghsa
Trending — 3 sources updated this week
7.5EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 7.5Exploit: None knownExposed: 0

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

Crypt::OpenSSL::X509 versions before 2.1.3 for Perl allow denial of service via NULL pointer dereference.

X509V3_EXT_d2i(ext) returns NULL when an extension's DER value fails to parse. basicC, ia5string, and auth_att dereference its result without a NULL check. keyid_data also dereferences akid->keyid, which is NULL for an empty AKI SEQUENCE (DER 30 00) even when the parse succeeds.

A caller invoking an affected helper on an extension from an untrusted certificate triggers a SIGSEGV that crashes the Perl process.

CVSS v3
7.5
EG Score
7.5(medium)
EG Risk
49(Track)
EG Risk 49/100SSVC: 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
Severity75% × 45%
Exploitation0% × 40%
Automatability100% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
23%
KEV
Not listed

Published

July 13, 2026

Last Modified

August 11, 2026

Advisory Details (2)

Auto-updated Jul 14, 2026
No patch confirmed yet.
generic

Changes.md - metacpan.org

https://metacpan.org/release/JONASBN/Crypt-OpenSSL-X509-2.1.3/source/Changes.md
generic
https://github.com/dsully/perl-crypt-openssl-x509/commit/4c1e2370556097c253ae27abe9e1097ea377fbd2.patch

Vendor Advisories for CVE-2026-58101(1)

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

Affected Packages

(4 across 4 ecosystems)
Debian:11(1)
PackageVulnerable rangeFixed inDependents
libcrypt-openssl-x509-perl1.9.02-1 ... 2.1.3-1 (12 versions)——
Debian:12(1)
PackageVulnerable rangeFixed inDependents
libcrypt-openssl-x509-perl1.9.14-2 ... 2.1.3-1 (7 versions)——
Debian:13(1)
PackageVulnerable rangeFixed inDependents
libcrypt-openssl-x509-perl2.0.1-1, 2.1.1-1, 2.1.2-1, 2.1.3-1——
Debian:14(1)
PackageVulnerable rangeFixed inDependents
libcrypt-openssl-x509-perl2.0.1-1, 2.1.1-1, 2.1.2-12.1.3-1—

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 19× in last 7d / 108× 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 159 total refreshes for this CVE.

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

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-58101?
CVE-2026-58101 is a high vulnerability published on July 13, 2026. Crypt::OpenSSL::X509 versions before 2.1.3 for Perl allow denial of service via NULL pointer dereference. X509V3EXTd2i(ext) returns NULL when an extension's DER value fails to parse. basicC, ia5string, and authatt dereference its result without a NULL check. keyiddata also dereferences akid->keyid,…
When was CVE-2026-58101 disclosed?
CVE-2026-58101 was first published in the National Vulnerability Database on July 13, 2026, with the most recent update on August 11, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-58101 actively exploited?
CVE-2026-58101 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 76.9% of all scored CVEs.
What is the CVSS score of CVE-2026-58101?
CVE-2026-58101 has a CVSS v3.1 base score of 7.5 (CISA-ADP / Vulnrichment enrichment; NVD's own analysis pending).
How do I remediate CVE-2026-58101?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-58101, 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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