CVE-2026-34059
high
CVSS v3
7.5
CVSS v4 NEW
—
VIR risk
7.5
Description
Buffer Over-read vulnerability in Apache HTTP Server. This issue affects Apache HTTP Server: through 2.4.66. Users are recommended to upgrade to version 2.4.67, which fixes the issue.
Predictions
Exploit likelihood
83%
Patch ETA
—
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
No mitigations published for this CVE yet.
The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.
✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here withsource_tier=community-verified.
OS impact
SUSE Affected 1 release
| Version | Status | Fixed in |
|---|---|---|
| — | Affected | — |
Windows Affected 1 release
| Version | Status | Fixed in |
|---|---|---|
| — | Affected | — |
AlmaLinux Fixed 2 releases
| Version | Status | Fixed in |
|---|---|---|
| 9 | Fixed | httpd-manual-2.4.62-13.el9_8.1.noarch.rpm |
| 8 | Fixed | httpd-filesystem-2.4.37-65.module_el8.10.0+4185+0955a0d7.8.noarch.rpm |
Debian Fixed 5 releases
| Version | Status | Fixed in |
|---|---|---|
| trixie | Fixed | 2.4.67-1~deb13u2 |
| sid | Fixed | 2.4.67-1 |
| forky | Fixed | 2.4.67-1 |
| bullseye | Fixed | 2.4.67-1~deb11u1 |
| bookworm | Fixed | 2.4.67-1~deb12u2 |
Red Hat Fixed 2 releases
| Version | Status | Fixed in |
|---|---|---|
| 9 | Fixed | — |
| 8 | Fixed | — |
Application impact
| Vendor | Product | Versions | Fixed |
|---|---|---|---|
| apache | http_server | {"endExcluding":"2.4.67"} | 2.4.67 |
References
- https://security-tracker.debian.org/tracker/CVE-2026-34059
- https://httpd.apache.org/security/vulnerabilities_24.html
- http://www.openwall.com/lists/oss-security/2026/05/04/17
- https://www.suse.com/security/cve/CVE-2026-34059.html
- https://access.redhat.com/errata/RHSA-2026:21391
- https://bugzilla.redhat.com/2464940
- https://bugzilla.redhat.com/2464952
- https://bugzilla.redhat.com/2464953
- https://bugzilla.redhat.com/2465299
- https://bugzilla.redhat.com/2466913
- https://errata.almalinux.org/9/ALSA-2026-21391.html
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-34059
- https://access.redhat.com/errata/RHSA-2026:22140
- https://bugzilla.redhat.com/2379343
- https://errata.almalinux.org/8/ALSA-2026-22140.html
CWEs
CWE-126
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.