CVE record
CVE-2021-40438
Apache HTTP Server-Side Request Forgery (SSRF)
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.
CVE evidence
Known exploitation
Listed in CISA KEV
Absence from the fetched catalog does not establish that exploitation has not occurred.
Severity
critical
CVSS 9.0 · CVSS_V3
Affected packages
0
Supported package records returned by OSV. Vendor and product names are not used to infer matches.
CISA Known Exploited Vulnerabilities
Catalog record
- Vendor / project
- Apache
- Product
- Apache
- Date added
- Dec 1, 2021
- CISA federal remediation due date
- Dec 15, 2021
- Required action
- Apply updates per vendor instructions.
- Known ransomware campaign use
- Known
- CWE
- CWE-918
OSV package mapping
Affected open-source packages
OSV did not return a package mapping in the five supported ecosystems. RequestGuard does not infer package names from the CISA vendor or product fields.