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critical —

CVE-2026-119618 json

Apache HTTP Server: mod_http2: heap corruption and RCE in assign_headers

published 19h ago modified 44m ago also EUVD-2026-123532

cvss
—
not scored
cisa kev
Not listed
not in CISA's catalog
epss
—
no EPSS score yet
public exploits
0
none known

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.

Patch / fix

  • apache2 Alpine 3.24 2.4.71-r0

alpine advisories ALPINE-CVE-2026-119618

Alpine secdb © Alpine Linux, from https://secdb.alpinelinux.org via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

Is CVE-2026-119618 in your stack? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.

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Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2026-119618 updated cvss 9.8

httpd:2.4/mod_http2: mod_http2: httpd: Remote code execution in mod_http2

  • Red Hat Hardened Images httpd Red Hat JBoss Core Services jbcs-httpd24-mod_http2
    affected: no fix available
  • Red Hat Enterprise Linux AppStream (v. 9) mod_http2 2.0.26-7.el9_9.1
    fixed: vendor fix RHSA-2026:98981
  • Red Hat Enterprise Linux AppStream (v. 10) mod_http2 2.0.29-5.el10_3.1
    fixed: vendor fix RHSA-2026:98978
  • Red Hat Enterprise Linux AppStream E4S (v.9.4) mod_http2 2.0.26-2.el9_4.4
    fixed: vendor fix RHSA-2026:98968
  • Red Hat Enterprise Linux AppStream EUS (v. 10.0) mod_http2 2.0.29-2.el10_0.3
    fixed: vendor fix RHSA-2026:98953
  • Red Hat Enterprise Linux AppStream EUS (v.9.6) mod_http2 2.0.26-4.el9_6.3
    fixed: vendor fix RHSA-2026:98954
  • Red Hat Enterprise Linux AppStream EUS (v.9.8) mod_http2 2.0.26-6.el9_8.3
    fixed: vendor fix RHSA-2026:98982
  • Red Hat Enterprise Linux AppStream EUS (v.10.2) mod_http2 2.0.29-4.el10_2.3
    fixed: vendor fix RHSA-2026:98979
show 1 more
  • Red Hat Enterprise Linux 6 httpd, mod_ssl, httpd-tools, httpd-manual Red Hat Enterprise Linux 7 httpd, mod_ssl, mod_ldap, httpd-tools, mod_session, httpd-manual, +1 more Red Hat Enterprise Linux 8 mod_http2 Red Hat Enterprise Linux AppStream E4S (v.9.4) mod_http2-debuginfo 2.0.26-2.el9_4.4, mod_http2-debugsource 2.0.26-2.el9_4.4 Red Hat Enterprise Linux AppStream EUS (v. 10.0) mod_http2-debuginfo 2.0.29-2.el10_0.3, mod_http2-debugsource 2.0.29-2.el10_0.3 Red Hat Enterprise Linux AppStream EUS (v.9.6) mod_http2-debuginfo 2.0.26-4.el9_6.3, mod_http2-debugsource 2.0.26-4.el9_6.3
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Affected products

  • Apache Software Foundation Apache HTTP Server

Classification

Weakness
  • CWE-362 Concurrent Execution using Shared Resource with Improper Synchronization
Technology feeds

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.