CVE-2026-33007

MEDIUMNVD 5.35.3—
EchelonGraph scoreMEDIUM confidence

Score 5.3 from GitHub Security Advisory published 2026-05-04. NVD baseline CVSS 5.3; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
5.3EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 1.2%CVSS: 5.3Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

A NULL pointer dereference in the mod_authn_socache in Apache HTTP Server 2.4.66 and earlier allows an unauthenticated remote user to crash a child process in a caching forward proxy configuration.

Users are recommended to upgrade to version 2.4.67, which fixes this issue.

CVSS v3
5.3
EG Score
5.3MEDIUMmedium confidence
EG Risk
39
EG Risk 39/100

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
Severity53% × 45%
Exploitation1% × 40%
Automatability100% × 15%
EPSS PROB
1.2%
EPSS %ILE
67th
KEV
Not listed

Published

May 4, 2026

Last Modified

May 4, 2026

Advisory Details (1)

Auto-updated May 4, 2026
⚠️ Active exploitation confirmed. Patch available.
genericMentions a patch (unverified)🔴 Active Exploitation

Apache HTTP Server 2.4 vulnerabilities - The Apache HTTP Server Project

https://httpd.apache.org/security/vulnerabilities_24.html

Vendor Advisories for CVE-2026-33007(14)

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

Patch Availability(12)

Vendor / EcosystemFix (by version range) / PatchReleasedSource
ubuntulibapache2-mod-proxy-uwsgi (2.4.52-1ubuntu4.20) @ jammy2026-08-23ubuntu
ubuntulibapache2-mod-proxy-uwsgi (2.4.41-4ubuntu3.23+esm5) @ focal2026-08-23ubuntu
redhathttpd-0:2.4.63-1.el10_0.42026-07-28redhat
redhathttpd:2.4-8060020260702195216.ad008a3a2026-07-08redhat
redhathttpd:2.4-8040020260702193120.522a0ee42026-07-08redhat
redhathttpd:2.4-8080020260702200145.63b345852026-07-07redhat
redhatmod_authn_socache.so2026-06-22redhat
redhatjbcs-httpd24-httpd-0:2.4.62-13.el7jbcs2026-06-22redhat
redhathttpd:2.4-8100020260519200905.489197e62026-06-01redhat
redhathttpd-0:2.4.63-13.el10_2.12026-05-27redhat
redhathttpd-0:2.4.62-13.el9_8.12026-05-27redhat
redhathttpd-main-2.4.67-0.1.hum12026-05-06redhat

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

(9 across 9 ecosystems)
Alpine:v3.20(1)
PackageVulnerable rangeFix by version rangeDependents
apache2—
  • every version up to 2.4.67-r0: fixed in 2.4.67-r0
—
Alpine:v3.21(1)
PackageVulnerable rangeFix by version rangeDependents
apache2—
  • every version up to 2.4.67-r0: fixed in 2.4.67-r0
—
Alpine:v3.22(1)
PackageVulnerable rangeFix by version rangeDependents
apache2—
  • every version up to 2.4.67-r0: fixed in 2.4.67-r0
—
Alpine:v3.23(1)
PackageVulnerable rangeFix by version rangeDependents
apache2—
  • every version up to 2.4.67-r0: fixed in 2.4.67-r0
—
Alpine:v3.24(1)
PackageVulnerable rangeFix by version rangeDependents
apache2—
  • every version up to 2.4.67-r0: fixed in 2.4.67-r0
—
Debian:11(1)
PackageVulnerable rangeFix by version rangeDependents
apache22.4.48-3.1 ... 2.4.66-8 (82 versions)
  • every version up to 2.4.67-1~deb11u1: fixed in 2.4.67-1~deb11u1
—
Debian:12(1)
PackageVulnerable rangeFix by version rangeDependents
apache22.4.57-2 ... 2.4.67-1~deb12u1 (46 versions)
  • every version up to 2.4.67-1~deb12u2: fixed in 2.4.67-1~deb12u2
—
Debian:13(1)
PackageVulnerable rangeFix by version rangeDependents
apache22.4.65-2 ... 2.4.67-1~deb13u1 (22 versions)
  • every version up to 2.4.67-1~deb13u2: fixed in 2.4.67-1~deb13u2
—
Debian:14(1)
PackageVulnerable rangeFix by version rangeDependents
apache22.4.65-2 ... 2.4.67-1~deb13u3 (24 versions)
  • every version up to 2.4.67-1: fixed in 2.4.67-1
—

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 7× in last 7d / 22× 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 243 total refreshes for this CVE.

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

Related CVEs(same product + same vendor + same CWE)

Frequently asked(5)

What is CVE-2026-33007?
CVE-2026-33007 is a medium vulnerability published on May 4, 2026. A NULL pointer dereference in the modauthnsocache in Apache HTTP Server 2.4.66 and earlier allows an unauthenticated remote user to crash a child process in a caching forward proxy configuration. Users are recommended to upgrade to version 2.4.67, which fixes this issue.
When was CVE-2026-33007 disclosed?
CVE-2026-33007 was first published on May 4, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-33007 actively exploited?
CVE-2026-33007 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 1.2% probability of exploitation in the next 30 days (67th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-33007?
CVE-2026-33007 has a CVSS v3 base score of 5.3 (NVD).
How do I remediate CVE-2026-33007?
A fix for CVE-2026-33007 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-33007 are linked in the Vendor Advisories panel on this page.

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