CVE-2026-56449
CVE-2026-56449: 2 tracked advisory records across Apache, Red Hat. Compare vendor sources and published fix guidance.
Compare the source-linked records below. Ratings and product/version details belong to each advisory; they are not a single CVE-wide score or proof that every listed product is affected. How VulniPulse collects and checks evidence.
Vendor advisory comparison
Apache
1 advisory- Advisory severityHigh7.5
High [CVE-2026-56449] Out-of-bounds Write vulnerability in Apache HTTP Server's mod_proxy_html with crafted HTTP response bodies
CVE-2026-56449Source published Source updated
Out-of-bounds Write vulnerability in Apache HTTP Server's mod_proxy_html with crafted HTTP response bodies. This issue affects Apache HTTP Server: from 2.4.0 through 2.4.68.
- Affected products in this advisory
- Apache HTTP Server
- Source-reported affected versions
- 2.4.0 through 2.4.68.
- through 2.4.68
- Source-reported fixed versions
- No fixed-version detail extracted. This does not mean no fix exists.
- Mitigation guidance
- No mitigation guidance extracted; consult the source.
Red Hat
1 advisory- Advisory severityLow3.7
Low [CVE-2026-56449] Denial of Service via crafted HTTP response bodies in mod_proxy_html
CVE-2026-56449Source published Source updated
Denial of Service via crafted HTTP response bodies in mod_proxy_html. Red Hat rates this low (CVSS 3.7). Weakness: CWE-787. Red Hat lists fixing advisory RHSA-2026:74858 with package httpd-main-2.4.69-1.hum1. Affected products named by the advisory: Red Hat Hardened Images; Red Hat Enterprise Linux 10; Red Hat Enterprise Linux 6; Red Hat Enterprise Linux 7; and 3 more.
- Related products — impact not confirmed
- Red Hat Hardened Images
- Red Hat Enterprise Linux 10
- Red Hat Enterprise Linux 6
- Red Hat Enterprise Linux 7
3 more entries in the full advisory.
- Source-reported affected versions
- Affected-version details not available in this record.
- Source-reported fixed versions
- httpd-main-2.4.69-1.hum1
- RHSA-2026:74858
- Mitigation guidance
- Disable the `mod_proxy_html` module if HTML link rewriting is not required: 1. Comment out the module loader directive in `/etc/httpd/conf.modules.d/00-proxyhtml.conf`: ``` # sed -i 's/^\s*LoadModule proxy_html_module/#&/' /etc/httpd/conf.modules.d/00-proxyhtml.conf ``` Alternatively, set `ProxyHTMLEnable Off` in the affected server or virtual host configuration. 2. Reload the Apache HTTP Server: ``` # systemctl reload httpd ``` Caveats: Disabling `mod_proxy_html` or turning off `ProxyHTMLEnable` halts automated rewriting of URLs in proxied HTML responses, which may break web applications that depend on backend path translation. Warning: Reloading or restarting the `httpd` service may temporarily interrupt active network connections.
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