CVE-2026-58586

CRITICALPre-NVD 9.89.8
EchelonGraph scoreMEDIUM confidence

Score 9.8 from GitHub Security Advisory (severity: CRITICAL) published 2026-07-24. 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 a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 9.8Exploit: None knownExposed: 0

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

Image::WebP versions before 0.3.0 for Perl bundle a vulnerable version of libwebp.

Image::WebP does not link to the system libwebp. Instead, it uses a bundled copy of libwebp 0.3.0 (released 2013-03-20). That version has multiple known vulnerabilities, including CVE-2023-4863.

Any caller that decodes an untrusted WebP image reaches the bundled decoder. Because the library is compiled into the module, upgrading the system libwebp does not remediate this.

CVSS v3
9.8
EG Score
9.8(medium)
EG Risk
59(Track)
EG Risk 59/100SSVC: 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
Severity98% × 45%
Exploitation0% × 40%
Automatability100% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
41%
KEV
Not listed

Published

July 24, 2026

Last Modified

July 31, 2026

Advisory Details (3)

Auto-updated Sep 18, 2026
No patch confirmed yet.

Vendor Advisories for CVE-2026-58586(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 35× in last 7d / 153× 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 370 total refreshes for this CVE.

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

Frequently asked(5)

What is CVE-2026-58586?
CVE-2026-58586 is a critical vulnerability published on July 24, 2026. Image::WebP versions before 0.3.0 for Perl bundle a vulnerable version of libwebp. Image::WebP does not link to the system libwebp. Instead, it uses a bundled copy of libwebp 0.3.0 (released 2013-03-20). That version has multiple known vulnerabilities, including CVE-2023-4863. Any caller that…
When was CVE-2026-58586 disclosed?
CVE-2026-58586 was first published in the National Vulnerability Database on July 24, 2026, with the most recent update on July 31, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-58586 actively exploited?
CVE-2026-58586 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 58.7% of all scored CVEs.
What is the CVSS score of CVE-2026-58586?
CVE-2026-58586 has a CVSS v3.1 base score of 9.8 (CISA-ADP / Vulnrichment enrichment; NVD's own analysis pending).
How do I remediate CVE-2026-58586?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-58586, 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

Explore the affected products and dependency analysis for CVE-2026-58586

Explore →

Is Your Infrastructure Affected by CVE-2026-58586?

EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.