CVE-2026-42528
published 2026-10-01CVE-2026-42528: A memory calculation bug in mod_dav in Apache httpd 2.4.67 and earlier allows an attacker with permission to create WebDAV locks to crash server child…
PriorityP422medium4.3CVSS 3.1
AVNACLPRLUINSUCNINAL
EPSS
0.42%
34.0th percentile
A memory calculation bug in mod_dav in Apache httpd 2.4.67 and earlier allows an attacker with permission to create WebDAV locks to crash server child processes.
Users are recommended to upgrade to version 2.4.69, which fixes this issue
Affected
4 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| apache | http_server | >= 2.4.0 < 2.4.69 | 2.4.69 |
| apache | httpd | — | — |
| apache_software_foundation | apache_http_server | <= 2.4.68 | — |
| httpd_2.4 | httpd | — | — |
CVSS provenance
nvdv3.14.3MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
vendor_redhat4.3MEDIUM
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GHSA
A memory calculation bug in mod_dav in Apache httpd 2.4.67 and earlier allows an attacker with permission to create WebDAV locks to crash server child processes.
ghsa_unreviewed·2026-10-01
CVE-2026-42528 [MEDIUM] CWE-789 A memory calculation bug in mod_dav in Apache httpd 2.4.67 and earlier allows an attacker with permission to create WebDAV locks to crash server child processes.
A memory calculation bug in mod_dav in Apache httpd 2.4.67 and earlier allows an attacker with permission to create WebDAV locks to crash server child processes.
Users are recommended to upgrade to version 2.4.69, which fixes this issue
Red Hat
httpd: httpd: Denial of Service via mod_dav shared lock memory calculation error
vendor_redhat·2026-10-01·CVSS 4.3
CVE-2026-42528 [MEDIUM] CWE-131 httpd: httpd: Denial of Service via mod_dav shared lock memory calculation error
httpd: httpd: Denial of Service via mod_dav shared lock memory calculation error
A memory calculation bug in mod_dav in Apache httpd 2.4.67 and earlier allows an attacker with permission to create WebDAV locks to crash server child processes.
Users are recommended to upgrade to version 2.4.69, which fixes this issue
A flaw was found in the mod_dav module of the Apache HTTP Server. This vulnerability allows a Denial of Service (DoS) by crashing server child processes. An attacker with permission to create Web Distributed Authoring and Versioning (WebDAV) locks can trigger a memory calculation error during lock operations, terminating active server processes.
Mitigation: If WebDAV functionality is not required, disable the mod_dav module by commenting out the `LoadModule dav_module` line
No detection rules found.
No public exploits indexed.
Hackernews
⚡ Weekly Recap: NetScaler and FortiMail 0-Days, AI Coding Leaks, Spectre v2 and Ransomware Arrests
blogs_hackernews·2026-10-05·CVSS 7.5
CVE-2026-88779 [HIGH] ⚡ Weekly Recap: NetScaler and FortiMail 0-Days, AI Coding Leaks, Spectre v2 and Ransomware Arrests
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## ⚡ Weekly Recap: NetScaler and FortiMail 0-Days, AI Coding Leaks, Spectre v2 and Ransomware Arrests
A blank field. A public repo. One reply to an email. A box left exposed. None of this sounds dramatic, which is partly the problem. This week’s threats keep finding leverage in small things that were easy to overlook.
There are actively exploited bugs in the mix, cleaner intrusion paths, smarter automation, and a long patch list waiting behind them. Some attacks are getting more capable. Others are still getting in because the basics gave way first.
Here’s what mattered this week.
## ⚡ Threat of the Week
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Bugzilla
CVE-2026-42528 httpd: httpd: Denial of Service via mod_dav shared lock memory calculation error [fedora-all]
bugzilla·2026-10-02·CVSS 4.3
CVE-2026-42528 [MEDIUM] CVE-2026-42528 httpd: httpd: Denial of Service via mod_dav shared lock memory calculation error [fedora-all]
CVE-2026-42528 httpd: httpd: Denial of Service via mod_dav shared lock memory calculation error [fedora-all]
Disclaimer: Community trackers are created by Red Hat Product Security team on a best effort basis. Package maintainers are required to ascertain if the flaw indeed affects their package, before starting the update process.
A memory calculation bug in mod_dav in Apache httpd 2.4.67 and earlier allows an attacker with permission to create WebDAV locks to crash server child processes.
Users are recommended to upgrade to version 2.4.69, which fixes this issue
Bugzilla
CVE-2026-42528 httpd: httpd: Denial of Service via mod_dav shared lock memory calculation error
bugzilla·2026-10-01·CVSS 4.3
CVE-2026-42528 [MEDIUM] CVE-2026-42528 httpd: httpd: Denial of Service via mod_dav shared lock memory calculation error
CVE-2026-42528 httpd: httpd: Denial of Service via mod_dav shared lock memory calculation error
A memory calculation bug in mod_dav in Apache httpd 2.4.67 and earlier allows an attacker with permission to create WebDAV locks to crash server child processes.
Users are recommended to upgrade to version 2.4.69, which fixes this issue
2026-10-01
Published