CVE-2026-119618: Apache HTTP Server: mod_http2: heap corruption and RCE in assign_headers
Apache Software Foundation · Apache HTTP Server
No distribution fix yet for Debian 12/13 · Affected: Apache Software Foundation Apache HTTP Server · Exploitation: not established
ExploitationNot established
Not in CISA KEV as of catalogue 2026.11.10 (10 Nov)
- In CISA KEV: not seen
- Exploited (reported): not seen
- Scanning observed: not seen
- Proof of concept public: not seen
- Not establishedNothing in the sources we check
No EPSS score yet. The score appears once FIRST publishes it.
Not scored yet. NVD has not published a CVSS score.
DescriptionNVD
Concurrent Execution using Shared Resource with Improper Synchronization vulnerability in Apache HTTP Server's mod_http2 in assign_headers() can lead to RCE. This issue affects Apache HTTP Server: from 2.4.55 through 2.4.70. Affected releases of mod_h2 from GitHub: from 2.0.8 through 2.0.42.
Fix status by distribution
From each distribution’s security tracker. Distributions we did not check are not listed.
- Debian 13Affected, no fix releasedchecked 11 Nov 16:00 UTC
- Debian 12Affected, no fix releasedchecked 11 Nov 16:00 UTC
What changed
Debian status tracked since 11 Nov 2026.
Coverage2 articles · 2 outlets
One row per outlet, in order of first report. First in our coverage: SecurityOnline, 11 Nov.
- Wed 11 Nov, 16:01 UTC. SecurityOnline, first report. Apache fixes HTTP/2 flaw that could enable remote code execution.
- Thu 12 Nov, 06:00 UTC. The Hacker News, its first report on the story. Apache fixes HTTP/2 flaw enabling unauthenticated remote code execution.
- First report
- Article
- Running total
Show as tableHide table
| Published (UTC) | Outlet | Headline |
|---|---|---|
| 11 Nov 16:01 | SecurityOnline | Apache fixes HTTP/2 flaw that could enable remote code execution |
| 12 Nov 06:00 | The Hacker News | Apache fixes HTTP/2 flaw enabling unauthenticated remote code execution |
- Apache fixes HTTP/2 flaw that could enable remote code executionSecurityOnline · first in our coverage · mentions it in passing
New articles also arrive in the RSS feed.