CVE-2026-13757

MEDIUMPre-NVD 6.26.2—
EchelonGraph scoreMEDIUM 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(medium)
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
4%
KEV
Not listed

Published

June 29, 2026

Last Modified

September 1, 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(9)

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

Patch Availability(9)

Vendor / EcosystemFixed in / PatchReleasedSource
ubuntup11-kit-modules (0.23.9-2ubuntu0.1+esm1) @ bionic2026-09-18ubuntu
redhatrhui5/rhua-tp-rhel9:17872412602026-08-24redhat
redhatdiscovery/discovery-ui-rhel9:17866348252026-08-13redhat
redhatrhui5/rhua-rhel9:17865335292026-08-12redhat
redhatinsights-proxy/insights-proxy-container-rhel9:17864336562026-08-11redhat
redhatp11-kit-0:0.26.4-1.el9_82026-08-03redhat
redhatp11-kit-0:0.26.4-1.el10_22026-08-03redhat
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.

Affected Packages

(4 across 4 ecosystems)
Debian:11(1)
PackageVulnerable rangeFixed inDependents
p11-kit0.23.22-1 ... 0.26.4-1 (33 versions)——
Debian:12(1)
PackageVulnerable rangeFixed inDependents
p11-kit0.24.1-2 ... 0.26.5-1 (25 versions)——
Debian:13(1)
PackageVulnerable rangeFixed inDependents
p11-kit0.25.10-1 ... 0.26.5-1 (9 versions)——
Debian:14(1)
PackageVulnerable rangeFixed inDependents
p11-kit0.25.10-1 ... 0.26.2-3 (7 versions)0.26.4-1—

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 12× in last 7d / 72× 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 242 total refreshes for this CVE.

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

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 September 1, 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 95.6% 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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