CVE-2026-34502

HIGHPre-NVD 7.57.5—
EchelonGraph scoreMEDIUM confidence

Score 7.5 from GitHub Security Advisory (severity: HIGH) published 2026-08-06. CISA-ADP (Vulnrichment) CVSS v3.1 baseline 7.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cisa-adp, epss, ghsa
Trending — 4 sources updated this week
7.5EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 1%CVSS: 7.5Exploit: None knownExposed: 0

A fix is available — apply it.

Heap-based Buffer Overflow vulnerability in Apache Portable Runtime Utility memcached client

This issue affects Apache Portable Runtime Utility: from 1.3.0 through 1.6.3.

CVSS v3
7.5
EG Score
7.5(medium)
EG Risk
49(Track)
EG Risk 49/100SSVC: 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
Severity75% × 45%
Exploitation1% × 40%
Automatability100% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
1%
EPSS %ILE
42%
KEV
Not listed

Published

August 6, 2026

Last Modified

August 7, 2026

Advisory Details (2)

Auto-updated Aug 6, 2026
No patch confirmed yet.
generic

oss-security - CVE-2026-34502: Apache Portable Runtime Utility: Heap buffer overflow in APR memcached client

http://www.openwall.com/lists/oss-security/2026/08/06/12
generic
https://lists.apache.org/thread/spk5643m4vq0mb8h5b9hz9gkp57ombl8

Vendor Advisories for CVE-2026-34502(3)

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

Patch Availability(4)

Vendor / EcosystemFixed in / PatchReleasedSource
ubuntulibaprutil1-ldap (1.6.1-4ubuntu2.2+esm1) @ focal2026-09-19ubuntu
redhatapr-util-0:1.6.3-23.el10_2.12026-09-10redhat
redhatapr-util-0:1.6.1-23.el9_8.12026-09-10redhat
redhatapr-util-main-1.6.5-1.hum12026-08-22redhat

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

(8 across 8 ecosystems)
Alpine:v3.21(1)
PackageVulnerable rangeFixed inDependents
apr-util—1.6.4-r0—
Alpine:v3.22(1)
PackageVulnerable rangeFixed inDependents
apr-util—1.6.4-r0—
Alpine:v3.23(1)
PackageVulnerable rangeFixed inDependents
apr-util—1.6.4-r0—
Alpine:v3.24(1)
PackageVulnerable rangeFixed inDependents
apr-util—1.6.4-r0—
Debian:11(1)
PackageVulnerable rangeFixed inDependents
apr-util1.6.1-5 ... 1.6.4-2 (13 versions)——
Debian:12(1)
PackageVulnerable rangeFixed inDependents
apr-util1.6.3-11.6.3-1+deb12u1—
Debian:13(1)
PackageVulnerable rangeFixed inDependents
apr-util1.6.3-31.6.3-3+deb13u1—
Debian:14(1)
PackageVulnerable rangeFixed inDependents
apr-util1.6.3-3, 1.6.3-41.6.4-1—

Weakness Classification(1)

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

Additional Vendor Advisories

(3)

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 38× in last 7d / 149× 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 205 total refreshes for this CVE.

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

Frequently asked(5)

What is CVE-2026-34502?
CVE-2026-34502 is a high vulnerability published on August 6, 2026. Heap-based Buffer Overflow vulnerability in Apache Portable Runtime Utility memcached client This issue affects Apache Portable Runtime Utility: from 1.3.0 through 1.6.3.
When was CVE-2026-34502 disclosed?
CVE-2026-34502 was first published in the National Vulnerability Database on August 6, 2026, with the most recent update on August 7, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-34502 actively exploited?
CVE-2026-34502 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 1% probability of exploitation in the next 30 days, which ranks it in the top 57.6% of all scored CVEs.
What is the CVSS score of CVE-2026-34502?
CVE-2026-34502 has a CVSS v3.1 base score of 7.5 (CISA-ADP / Vulnrichment enrichment; NVD's own analysis pending).
How do I remediate CVE-2026-34502?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-34502, 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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