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CVE-2021-40438: Apache Apache

EPSS99.9%No. 16 of 1739 in KEV
CVE year2021listed the same year
Same vendor in KEV41
Same product1
FieldValue
VendorApache
ProductApache
NameApache HTTP Server-Side Request Forgery (SSRF)
Added to KEV2021-12-01
US federal due date2021-12-15
Ransomware useKnown
CWECWE-918

CISA description

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.

NVD — CVE-2021-40438

Data from CISA's Known Exploited Vulnerabilities (KEV) catalog. EPSS is FIRST's estimated probability of exploitation activity in the next 30 days, refreshed weekly. Always follow the vendor's official guidance.
About this page

A Apache Apache vulnerability added to CISA's Known Exploited Vulnerabilities catalog on 2021-12-01.