CVE-20XX-?
agent?

CVE-2021-40438

9.0 CRITICAL 100% exploit odds Drop everything exploited in the wild Fix listed Disclosure Server

What it is

A crafted request uri-path can cause mod_proxy to forward the request to an origin server choosen by the remote user. This issue affects Apache HTTP Server 2.4.48 and earlier.

At a glance

Exploitability
Can be exploited over the network without logging in. High risk of data exposure, data tampering, service disruption.
In the wild
CISA lists this as exploited in real attacks. Treat as urgent.
Fix
A patch, advisory or fixed version is referenced. Upgrade or apply it.

Timeline

  1. ReservedThe CVE id was reserved by its CNA
  2. PublishedDisclosed publicly on CVE.org and NVD
  3. 2021-12-01 Exploited in the wildAdded to CISA's Known Exploited Vulnerabilities list
  4. 2021-12-15 Remediation deadlineCISA's due date for federal agencies to fix it
  5. Last updatedMost recent change to the record

Why it ranks here

Details

Published
Last modified
Added to CISA KEV
2021-12-01
Exploit probability
100.0% · EPSS, next 30 days
Weakness
CWE-918 · Server-side request forgery
Record status
Analyzed

Affected

Attack profile CVSS 3.1 · 9.0

Attack vector
Network
Complexity
High
Privileges needed
None
User interaction
None
Scope
Changed
Confidentiality
High
Integrity
High
Availability
High
Raw vector

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H

Is it in your code?

Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.

Read https://cve-list.com/agent/cve/CVE-2021-40438.md and follow it. Check whether this project is affected by CVE-2021-40438. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.

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Fix and advisories

References

NVD record · CVE.org record