# CVE-2026-119618: Apache HTTP Server: mod_http2: heap corruption and RCE in assign_headers

Status: published. Published: 2026-11-11. Updated: 2026-11-11.

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.

## Remediation

No remediation reported in collected sources

## Affected products and versions

- Apache Software Foundation / Apache HTTP Server: ≥ 2.4.55; ≤ 2.4.70 (affected, semver). Source: CNA: apache

## Severity and prioritization

- CISA KEV: No listing in collected sources

- EPSS: Not available

- SSVC: Not available

- Weaknesses: CWE-362

## Exploit evidence

No exploit evidence in collected sources. This is not proof of no exploitation.

## References

- https://httpd.apache.org/security/vulnerabilities_24.html (CNA: apache; vendor-advisory)

## Provenance

- CNA: apache: https://www.cve.org/CVERecord?id=CVE-2026-119618; retrieved 2026-11-11; source updated 2026-11-11

Revision: 1ba9d2648fee1aee881d557abdaeb0519c521aaaa8f28b203488f3593768f859

Canonical: https://y2.dev/cve/CVE-2026-119618

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Collected public records only. Check source status for coverage and freshness.