HIGH CWE-362
CVE-2026-119618
Apache HTTP Server: mod_http2: heap corruption and RCE in assign_headers
Apache·HTTP Server
8.1/ 10
CVSS 3.1
High severity
0.41%
EPSS exploit odds
Chance of exploitation in the next 30 days
Higher than 36% of all CVEs
Not listed
CISA KEV catalog
No confirmed in-the-wild exploitation on CISA's list.
Timeline
- Published
- Nov 11, 2026
- Updated
- Nov 13, 2026
- First covered
- Nov 12, 2026
- Latest story
- 2 days ago
Summary
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.
CWE-362Concurrent Execution using Shared Resource with Improper Synchronization
Attack profile
Attack vectorNetwork
ComplexityHigh
PrivilegesNone
User interactionNone
ScopeUnchanged
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:HAffected products
- Apache HTTP Server2.4.55 to 2.4.70