CVE-2026-57433

CRITICALPre-NVD 9.89.8
EchelonGraph scoreMEDIUM confidence

Score 9.8 from GitHub Security Advisory (severity: CRITICAL) published 2026-07-13. 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 — 4 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

A fix is available — apply it.

Storable versions before 3.41 for Perl have a signed integer overflow when deserializing a crafted SX_HOOK record.

retrieve_hook_common reads a signed 32-bit item count from an SX_HOOK record and calls av_extend with that count plus one. A count of I32_MAX wraps the addition to a negative value.

A crafted blob passed to thaw or retrieve triggers the overflow; av_extend receives the negative count and dies with a panic, terminating the deserialization.

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
28%
KEV
Not listed

Published

July 13, 2026

Last Modified

July 14, 2026

Advisory Details (2)

Auto-updated Aug 29, 2026
No patch confirmed yet.
generic

oss-security - CVE-2026-57433: Storable versions before 3.41 for Perl have a signed integer overflow when deserializing a crafted SX_HOOK record

http://www.openwall.com/lists/oss-security/2026/07/13/7

Patch Availability(2)

Vendor / EcosystemFixed in / PatchReleasedSource
ubuntuperl-modules-5.38 (5.38.2-3.2ubuntu0.4) @ noble2026-08-30ubuntu
ubuntuperl-modules-5.22 (5.22.1-9ubuntu0.9+esm3) @ xenial2026-08-30ubuntu

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
perl5.32.1-4 ... 5.44.0-1 (59 versions)
Debian:12(1)
PackageVulnerable rangeFixed inDependents
perl5.36.0-10 ... 5.44.0-1 (42 versions)
Debian:13(1)
PackageVulnerable rangeFixed inDependents
perl5.40.1-6 ... 5.44.0-1 (10 versions)
Debian:14(1)
PackageVulnerable rangeFixed inDependents
perl5.40.1-6, 5.40.1-75.40.1-8

Weakness Classification(1)

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

Additional Vendor Advisories

(2)

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 56× in last 7d / 362× 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 462 total refreshes for this CVE.

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

Frequently asked(5)

What is CVE-2026-57433?
CVE-2026-57433 is a critical vulnerability published on July 13, 2026. Storable versions before 3.41 for Perl have a signed integer overflow when deserializing a crafted SX_HOOK record. retrievehookcommon reads a signed 32-bit item count from an SXHOOK record and calls avextend with that count plus one. A count of I32_MAX wraps the addition to a negative value. A…
When was CVE-2026-57433 disclosed?
CVE-2026-57433 was first published in the National Vulnerability Database on July 13, 2026, with the most recent update on July 14, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-57433 actively exploited?
CVE-2026-57433 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 71.5% of all scored CVEs.
What is the CVSS score of CVE-2026-57433?
CVE-2026-57433 has a CVSS v3.1 base score of 9.8 (CISA-ADP / Vulnrichment enrichment; NVD's own analysis pending).
How do I remediate CVE-2026-57433?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-57433, 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.

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