CVE-2026-56154

LOWCVSS 9.8 · CRITICAL

Signal is active with 1 mentions in latest observed window

Immediate actions

Track advisory updates for patch or workaround availability

Recommended action window: Monitor and triage in normal cycle

NVD description

Use After Free vulnerability in Apache HTTP Server's mod_rewrite when using lookahead (%{LA-U:HTTP:...}) This issue affects Apache HTTP Server: from 2.4.0 through 2.4.68.

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0.0/ 10 priority

Sources & remediation

Other references

https://httpd.apache.org/security/vulnerabilities_24.html
http://www.openwall.com/lists/oss-security/2026/10/01/17

Weakness type (CWE)

CWE-416

Priority

LOW

Exploitation

NONE

PoC

NONE

Patch

NONE

Momentum

NONE

Threat summary

1 mentions across 1 observed day

What's happening

1 total mentions across 1 day

Deep dive

Activity timeline1 mentions / 1d

Full discourse1 post

VulDB 🛡@vuldb1d
The severity is increased for this new vulnerability affecting Apache HTTP Server (CVE-2026-56154) vuldb.com/vuln/412724
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