CVE-2026-13757

MEDIUMPre-NVD 6.26.2—
EchelonGraph scoreHIGH confidence

Score 6.2 from GitHub Security Advisory published 2026-06-29. a secondary CVSS source baseline 6.2; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 4 sources updated this week
6.2EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 6.2Exploit: None knownExposed: 0

A fix is available — apply it.

A flaw was found in p11-kit. The RPC message attribute parsing functions p11_rpc_message_get_attribute() and p11_rpc_message_get_attribute_array_value() form a mutually-recursive call chain with no recursion depth limit when processing nested CKA_WRAP_TEMPLATE, CKA_UNWRAP_TEMPLATE, and CKA_DERIVE_TEMPLATE attributes. An unauthenticated attacker with local access to the p11-kit RPC Unix domain socket can send a specially crafted request with deeply nested template attributes, causing stack exhaustion and crashing the p11-kit server process and its dependent services.

CVSS v3
6.2
EG Score
6.2(high)
EG Risk
28(Track)
EG Risk 28/100SSVC: 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
Severity62% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
3%
KEV
Not listed

Published

June 29, 2026

Last Modified

July 13, 2026

Advisory Details (2)

Auto-updated Jun 29, 2026
Patch available. Sources: redhat.
redhat

2494556 – (CVE-2026-13757) CVE-2026-13757 p11-kit: Stack exhaustion via unbounded recursion in RPC attribute parsing

https://bugzilla.redhat.com/show_bug.cgi?id=2494556
redhat Patch Available

cve-details

https://access.redhat.com/security/cve/CVE-2026-13757

Vendor Advisories for CVE-2026-13757(3)

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

Patch Availability(2)

Vendor / EcosystemFixed in / PatchReleasedSource
redhatp11-kit-main-0.26.4-1.hum12026-07-12redhat
redhatp11-kit-main-0.26.2-1.2.hum12026-07-10redhat

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.

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 14× in last 7d / 61× 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. 2026-07-27 16:54 UTCEG score recompute
  2. 2026-07-27 16:54 UTCVendor advisory
  3. 2026-07-27 16:54 UTCGHSA enrichment
  4. 2026-07-27 14:13 UTCEPSS rescore
  5. 2026-07-26 14:54 UTCEPSS rescore
  6. 2026-07-26 14:54 UTCEPSS rescore
  7. 2026-07-26 14:00 UTCEG score recompute
  8. 2026-07-26 14:00 UTCVendor advisory
  9. 2026-07-26 14:00 UTCGHSA enrichment
  10. 2026-07-24 14:17 UTCEPSS rescore
  11. 2026-07-23 14:18 UTCEPSS rescore
  12. 2026-07-23 03:05 UTCEG score recompute
  13. 2026-07-22 14:08 UTCEPSS rescore
  14. 2026-07-21 15:24 UTCEPSS rescore
  15. 2026-07-20 17:08 UTCEPSS rescore
  16. 2026-07-19 14:30 UTCEPSS rescore
  17. 2026-07-19 02:28 UTCEPSS rescore
  18. 2026-07-18 10:04 UTCEPSS rescore
  19. 2026-07-16 17:02 UTCEPSS rescore
  20. 2026-07-16 16:23 UTCVendor advisory
  21. 2026-07-16 16:23 UTCGHSA enrichment
  22. 2026-07-15 16:57 UTCEPSS rescore
  23. 2026-07-15 16:33 UTCVendor advisory
  24. 2026-07-15 16:33 UTCGHSA enrichment
  25. 2026-07-15 02:00 UTCEPSS rescore
Show 36 more
  1. 2026-07-14 16:43 UTCVendor advisory
  2. 2026-07-14 16:43 UTCGHSA enrichment
  3. 2026-07-13 22:30 UTCEPSS rescore
  4. 2026-07-13 16:53 UTCVendor advisory
  5. 2026-07-13 16:53 UTCGHSA enrichment
  6. 2026-07-13 06:12 UTCEPSS rescore
  7. 2026-07-12 17:03 UTCVendor advisory
  8. 2026-07-12 17:02 UTCGHSA enrichment
  9. 2026-07-12 05:46 UTCEPSS rescore
  10. 2026-07-11 17:12 UTCVendor advisory
  11. 2026-07-11 17:12 UTCGHSA enrichment
  12. 2026-07-11 08:27 UTCEPSS rescore
  13. 2026-07-10 17:22 UTCVendor advisory
  14. 2026-07-10 17:22 UTCGHSA enrichment
  15. 2026-07-09 19:10 UTCEPSS rescore
  16. 2026-07-09 17:31 UTCGHSA enrichment
  17. 2026-07-08 17:39 UTCGHSA enrichment
  18. 2026-07-08 15:15 UTCEPSS rescore
  19. 2026-07-08 15:15 UTCEPSS rescore
  20. 2026-07-07 17:49 UTCGHSA enrichment
  21. 2026-07-07 13:46 UTCEPSS rescore
  22. 2026-07-06 17:58 UTCGHSA enrichment
  23. 2026-07-06 16:27 UTCEPSS rescore
  24. 2026-07-06 02:23 UTCEPSS rescore
  25. 2026-07-05 18:00 UTCGHSA enrichment
  26. 2026-07-05 02:30 UTCEPSS rescore
  27. 2026-07-05 02:30 UTCEPSS rescore
  28. 2026-07-04 18:08 UTCGHSA enrichment
  29. 2026-07-04 06:31 UTCEPSS rescore
  30. 2026-07-03 18:16 UTCGHSA enrichment
  31. 2026-07-02 18:25 UTCGHSA enrichment
  32. 2026-07-01 18:35 UTCGHSA enrichment
  33. 2026-06-30 23:22 UTCEPSS rescore
  34. 2026-06-30 18:45 UTCGHSA enrichment
  35. 2026-06-29 18:54 UTCEG score recompute
  36. 2026-06-29 18:53 UTCMITRE cvelistV5first tracked

Frequently asked(5)

What is CVE-2026-13757?
CVE-2026-13757 is a medium vulnerability published on June 29, 2026. A flaw was found in p11-kit. The RPC message attribute parsing functions p11rpcmessagegetattribute() and p11rpcmessagegetattributearrayvalue() form a mutually-recursive call chain with no recursion depth limit when processing nested CKAWRAPTEMPLATE, CKAUNWRAPTEMPLATE, and CKADERIVETEMPLATE…
When was CVE-2026-13757 disclosed?
CVE-2026-13757 was first published in the National Vulnerability Database on June 29, 2026, with the most recent update on July 13, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-13757 actively exploited?
CVE-2026-13757 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 96.5% of all scored CVEs.
What is the CVSS score of CVE-2026-13757?
CVE-2026-13757 has a CVSS v3 base score of 6.2 (NVD).
How do I remediate CVE-2026-13757?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-13757, 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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