CVE-2026-97230

CRITICALPre-NVD 9.89.8—
EchelonGraph scoreHIGH confidence

Score 9.8 from GitHub Security Advisory (severity: CRITICAL) published 2026-09-25. CISA-ADP (Vulnrichment) CVSS v3.1 baseline 9.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cisa-adp, epss, ghsa
Trending — 3 sources updated this week
9.8EG
EchelonGraph verdictPlan mitigationSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0.2%CVSS: 9.8Exploit: None knownExposed services: Not assessed

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

IO::Socket::SSL::SelfCertificate versions 1.00 for Perl contains malware which executes Python code from an obfuscated URL.

The generate_certificate runs a Python script saved as a certificate file. The pyhton script attempts to retrieve code from a hardcoded http URL that is obfuscated with base64 encoding and run the response body directly.

The impact is that arbitrary code can be invoked as the user, without a dropped script being saved on the affected host.

The releases have no test scripts nor build hooks. The intention may have been to trigger the payload after installation.

The dropper script is in lib/Crypt/SelfCertificate/sample/cert.pem.

This is similar to CVE-2026-95831 for the module Crypt::SelfCertificate.

The SHA-256 digests of the files are

ba24ee8ec3b7f47f65bed62e16fb413ace50653cf44bd8ea90914390922831e0 IO-Socket-SSL-SelfCertificate-1.00.tar.gz 821d38830e5eb8607738421c25ac25f59fff02a6ab67daa32fbd020429454dac IO-Socket-SSL-SelfCertificate-1.00/lib/IO/Socket/SSL/SelfCertificate/sample/cert.pem

d483cb7b23b7271cb11cf242bff4a2e1c02df0b9525eb0429abeea8961c399d5 IO-Socket-SSL-SelfCertificate-1.00-upload.tar.gz

CVSS v3
9.8
EG Score
9.8CRITICALhigh confidence
EG Risk
59
EG Risk 59/100CISA SSVC

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
Severity98% × 45%
Exploitation0% × 40%
Automatability100% × 15%
CISA SSVC: Track at low or medium mission impact; Attend at high (mission-essential systems).
Action: No fix is confirmed yet. Restrict network exposure of the affected system or apply the vendor's mitigation within your standard update timelines at low or medium mission impact and sooner than that at high, and watch the vendor's advisory for the fix.
EPSS PROB
0.2%
EPSS %ILE
13th
KEV
Not listed

CISA SSVCTrack at low or medium mission impact; Attend at high (mission-essential systems).

No fix is confirmed yet. Restrict network exposure of the affected system or apply the vendor's mitigation within your standard update timelines at low or medium mission impact and sooner than that at high, and watch the vendor's advisory for the fix.

Exploitation none (CISA Vulnrichment) · Automatable yes (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). Mission impact is CISA's Mission & Well-being decision point, and only you can judge it: high means the affected system is essential to your organisation's mission, or its compromise could cause irreversible harm to people. CISA's decision table

Published

September 24, 2026

Last Modified

September 25, 2026

Advisory Details (2)

Auto-updated Oct 2, 2026
No patch confirmed yet.
generic

Re: Crypt::SelfCertificate contains malware - nntp.perl.org

https://www.nntp.perl.org/group/perl.cpan.testers.discuss/2026/09/msg4756.html
generic
https://www.cve.org/CVERecord?id=CVE-2026-95831

Vendor Advisories for CVE-2026-97230(1)

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

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 60× in last 7d / 91× 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. 2026-10-05 08:21 UTCGHSA enrichment
  2. 2026-10-05 04:36 UTCGHSA enrichment
  3. 2026-10-05 00:51 UTCEG score recompute
  4. 2026-10-05 00:50 UTCGHSA enrichment
  5. 2026-10-04 23:23 UTCEPSS rescore
  6. 2026-10-04 21:01 UTCGHSA enrichment
  7. 2026-10-04 17:13 UTCGHSA enrichment
  8. 2026-10-04 13:27 UTCGHSA enrichment
  9. 2026-10-04 09:41 UTCGHSA enrichment
  10. 2026-10-04 05:52 UTCGHSA enrichment
  11. 2026-10-04 02:07 UTCGHSA enrichment
  12. 2026-10-03 22:23 UTCGHSA enrichment
  13. 2026-10-03 18:37 UTCGHSA enrichment
  14. 2026-10-03 14:38 UTCEG score recompute
  15. 2026-10-03 14:37 UTCGHSA enrichment
  16. 2026-10-03 14:26 UTCEPSS rescore
  17. 2026-10-03 10:45 UTCGHSA enrichment
  18. 2026-10-03 07:00 UTCGHSA enrichment
  19. 2026-10-03 03:15 UTCGHSA enrichment
  20. 2026-10-02 23:29 UTCGHSA enrichment
  21. 2026-10-02 19:44 UTCEG score recompute
  22. 2026-10-02 19:44 UTCGHSA enrichment
  23. 2026-10-02 17:57 UTCEPSS rescore
  24. 2026-10-02 15:59 UTCGHSA enrichment
  25. 2026-10-02 12:12 UTCGHSA enrichment
Show 66 more
  1. 2026-10-02 08:24 UTCGHSA enrichment
  2. 2026-10-02 04:40 UTCGHSA enrichment
  3. 2026-10-02 00:53 UTCGHSA enrichment
  4. 2026-10-02 00:53 UTCGHSA enrichment
  5. 2026-10-01 21:06 UTCEG score recompute
  6. 2026-10-01 21:06 UTCGHSA enrichment
  7. 2026-10-01 19:51 UTCEPSS rescore
  8. 2026-10-01 17:21 UTCGHSA enrichment
  9. 2026-10-01 13:33 UTCGHSA enrichment
  10. 2026-10-01 09:48 UTCGHSA enrichment
  11. 2026-10-01 06:04 UTCGHSA enrichment
  12. 2026-10-01 02:18 UTCGHSA enrichment
  13. 2026-09-30 22:33 UTCGHSA enrichment
  14. 2026-09-30 18:48 UTCEG score recompute
  15. 2026-09-30 18:48 UTCGHSA enrichment
  16. 2026-09-30 15:04 UTCEPSS rescore
  17. 2026-09-30 14:55 UTCGHSA enrichment
  18. 2026-09-30 11:11 UTCGHSA enrichment
  19. 2026-09-30 07:26 UTCGHSA enrichment
  20. 2026-09-30 03:40 UTCGHSA enrichment
  21. 2026-09-29 23:52 UTCGHSA enrichment
  22. 2026-09-29 19:40 UTCGHSA enrichment
  23. 2026-09-29 15:50 UTCEG score recompute
  24. 2026-09-29 15:50 UTCGHSA enrichment
  25. 2026-09-29 12:04 UTCGHSA enrichment
  26. 2026-09-29 08:19 UTCGHSA enrichment
  27. 2026-09-29 04:34 UTCGHSA enrichment
  28. 2026-09-29 00:49 UTCEG score recompute
  29. 2026-09-29 00:48 UTCGHSA enrichment
  30. 2026-09-28 21:03 UTCGHSA enrichment
  31. 2026-09-28 17:17 UTCEG score recompute
  32. 2026-09-28 17:17 UTCGHSA enrichment
  33. 2026-09-28 13:52 UTCEPSS rescore
  34. 2026-09-28 13:52 UTCEPSS rescore
  35. 2026-09-28 13:26 UTCGHSA enrichment
  36. 2026-09-28 09:42 UTCGHSA enrichment
  37. 2026-09-28 05:57 UTCGHSA enrichment
  38. 2026-09-28 02:12 UTCGHSA enrichment
  39. 2026-09-27 22:28 UTCGHSA enrichment
  40. 2026-09-27 18:43 UTCGHSA enrichment
  41. 2026-09-27 14:58 UTCEG score recompute
  42. 2026-09-27 14:57 UTCGHSA enrichment
  43. 2026-09-27 13:49 UTCEPSS rescore
  44. 2026-09-27 11:11 UTCGHSA enrichment
  45. 2026-09-27 07:22 UTCGHSA enrichment
  46. 2026-09-27 03:36 UTCGHSA enrichment
  47. 2026-09-26 23:49 UTCGHSA enrichment
  48. 2026-09-26 20:04 UTCGHSA enrichment
  49. 2026-09-26 16:19 UTCEG score recompute
  50. 2026-09-26 16:18 UTCGHSA enrichment
  51. 2026-09-26 15:59 UTCEPSS rescore
  52. 2026-09-26 12:33 UTCGHSA enrichment
  53. 2026-09-26 08:46 UTCGHSA enrichment
  54. 2026-09-26 05:01 UTCGHSA enrichment
  55. 2026-09-26 01:15 UTCEG score recompute
  56. 2026-09-26 01:15 UTCGHSA enrichment
  57. 2026-09-25 21:29 UTCEG score recompute
  58. 2026-09-25 21:29 UTCGHSA enrichment
  59. 2026-09-25 17:44 UTCGHSA enrichment
  60. 2026-09-25 16:24 UTCEG score recompute▲ 9.80
  61. 2026-09-25 16:24 UTCGHSA enrichment
  62. 2026-09-25 16:24 UTCMITRE cvelistV5CVSS v3 → 9.8 · severity → CRITICAL
  63. 2026-09-25 13:39 UTCGHSA enrichment
  64. 2026-09-24 23:34 UTCNVD update
  65. 2026-09-24 22:42 UTCEG score recompute
  66. 2026-09-24 22:41 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-97230?
CVE-2026-97230 is a critical vulnerability published on September 24, 2026. IO::Socket::SSL::SelfCertificate versions 1.00 for Perl contains malware which executes Python code from an obfuscated URL. The generate_certificate runs a Python script saved as a certificate file. The pyhton script attempts to retrieve code from a hardcoded http URL that is obfuscated with base64…
When was CVE-2026-97230 disclosed?
CVE-2026-97230 was first published on September 24, 2026, with the most recent update on September 25, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-97230 actively exploited?
CVE-2026-97230 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.2% probability of exploitation in the next 30 days (13th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-97230?
CVE-2026-97230 has a CVSS v3.1 base score of 9.8 (CISA-ADP / Vulnrichment enrichment; NVD's own analysis pending).
How do I remediate CVE-2026-97230?
No fix for CVE-2026-97230 is confirmed yet. Until one is published, restrict network exposure of the affected system or apply the vendor's mitigation — for example, keep it off the internet or limit it to trusted networks — and watch the vendor's advisory for the fix. The vendor advisories EchelonGraph has for CVE-2026-97230 are linked in the Vendor Advisories panel on this page.

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