CVE catalog

CVE-2021-20325

apache2: CVE-2021-20325

Severity: Critical · CVSS 9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Published: Jun 9, 2021, 10:00:00 PM UTC
Source: [NVD] · [CVE record]
EPSS: 1.59% · Oct 27, 2026

Missing fixes for CVE-2021-40438 and CVE-2021-26691 in the versions of httpd, as shipped in Red Hat Enterprise Linux 8.5.0, causes a security regression compared to the versions shipped in Red Hat Enterprise Linux 8.4. A user who installs or updates to Red Hat Enterprise Linux 8.5.0 would be vulnerable to the mentioned CVEs, even if they were properly fixed in Red Hat Enterprise Linux 8.4. CVE-2021-20325 was assigned to that Red Hat specific security regression and it does not affect the upstream versions of httpd.

Vulnerable and fixed packages

Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.

Distribution	Package	Release	Version	Status
Debian	apache2	sid	`2.4.69-1`	not affected
Debian	apache2	forky	`2.4.69-1`	not affected
Debian	apache2	trixie	`2.4.68-1~deb13u1`	not affected
Debian	apache2	trixie-security	`2.4.69-1~deb13u1`	not affected
Debian	apache2	bookworm	`2.4.68-1~deb12u1`	not affected
Debian	apache2	bookworm-security	`2.4.67-1~deb12u3`	not affected

Fixed-version evidence

Distribution	Package	Type	Release	Fixed version	Urgency	Origin	Bugs
Debian	apache2	source	sid	`Not affected`	unimportant	Not reported	Not reported
Debian	apache2	source	forky	`Not affected`	unimportant	Not reported	Not reported
Debian	apache2	source	trixie	`Not affected`	unimportant	Not reported	Not reported
Debian	apache2	source	bookworm	`Not affected`	unimportant	Not reported	Not reported

OpenFactory catalog packages

Matching against OpenFactory catalog package versions is in progress.

[Debian 12 (Bookworm)]

[apache2]Unknown
Details (4)
- 2.4.68-1~deb12u1 · amd64 · bookworm
  Not affected
  dsa · apache2 · debian · bookworm
- 2.4.68-1~deb12u1 · arm64 · bookworm
  Not affected
  dsa · apache2 · debian · bookworm
- 2.4.67-1~deb12u3 · amd64 · bookworm-security
  Not affected
  dsa · apache2 · debian · bookworm
- 2.4.67-1~deb12u3 · arm64 · bookworm-security
  Not affected
  dsa · apache2 · debian · bookworm
[apache2-bin]Unknown
Source package: [apache2]
Details (4)
- 2.4.68-1~deb12u1 · amd64 · bookworm
  Not affected
  dsa · apache2 · debian · bookworm
- 2.4.68-1~deb12u1 · arm64 · bookworm
  Not affected
  dsa · apache2 · debian · bookworm
- 2.4.67-1~deb12u3 · amd64 · bookworm-security
  Not affected
  dsa · apache2 · debian · bookworm
- 2.4.67-1~deb12u3 · arm64 · bookworm-security
  Not affected
  dsa · apache2 · debian · bookworm
[apache2-data]Unknown
Source package: [apache2]
Details (4)
- 2.4.68-1~deb12u1 · all · bookworm
  Not affected
  dsa · apache2 · debian · bookworm
- 2.4.68-1~deb12u1 · all · bookworm
  Not affected
  dsa · apache2 · debian · bookworm
- 2.4.67-1~deb12u3 · all · bookworm-security
  Not affected
  dsa · apache2 · debian · bookworm
- 2.4.67-1~deb12u3 · all · bookworm-security
  Not affected
  dsa · apache2 · debian · bookworm
[apache2-dev]Unknown
Source package: [apache2]
Details (4)
- 2.4.68-1~deb12u1 · amd64 · bookworm
  Not affected
  dsa · apache2 · debian · bookworm
- 2.4.68-1~deb12u1 · arm64 · bookworm
  Not affected
  dsa · apache2 · debian · bookworm
- 2.4.67-1~deb12u3 · amd64 · bookworm-security
  Not affected
  dsa · apache2 · debian · bookworm
- 2.4.67-1~deb12u3 · arm64 · bookworm-security
  Not affected
  dsa · apache2 · debian · bookworm
[apache2-doc]Unknown
Source package: [apache2]
Details (4)
- 2.4.68-1~deb12u1 · all · bookworm
  Not affected
  dsa · apache2 · debian · bookworm
- 2.4.68-1~deb12u1 · all · bookworm
  Not affected
  dsa · apache2 · debian · bookworm
- 2.4.67-1~deb12u3 · all · bookworm-security
  Not affected
  dsa · apache2 · debian · bookworm
- 2.4.67-1~deb12u3 · all · bookworm-security
  Not affected
  dsa · apache2 · debian · bookworm
[apache2-ssl-dev]Unknown
Source package: [apache2]
Details (4)
- 2.4.68-1~deb12u1 · amd64 · bookworm
  Not affected
  dsa · apache2 · debian · bookworm
- 2.4.68-1~deb12u1 · arm64 · bookworm
  Not affected
  dsa · apache2 · debian · bookworm
- 2.4.67-1~deb12u3 · amd64 · bookworm-security
  Not affected
  dsa · apache2 · debian · bookworm
- 2.4.67-1~deb12u3 · arm64 · bookworm-security
  Not affected
  dsa · apache2 · debian · bookworm
[apache2-suexec-custom]Unknown
Source package: [apache2]
Details (4)
- 2.4.68-1~deb12u1 · amd64 · bookworm
  Not affected
  dsa · apache2 · debian · bookworm
- 2.4.68-1~deb12u1 · arm64 · bookworm
  Not affected
  dsa · apache2 · debian · bookworm
- 2.4.67-1~deb12u3 · amd64 · bookworm-security
  Not affected
  dsa · apache2 · debian · bookworm
- 2.4.67-1~deb12u3 · arm64 · bookworm-security
  Not affected
  dsa · apache2 · debian · bookworm
[apache2-suexec-pristine]Unknown
Source package: [apache2]
Details (4)
- 2.4.68-1~deb12u1 · amd64 · bookworm
  Not affected
  dsa · apache2 · debian · bookworm
- 2.4.68-1~deb12u1 · arm64 · bookworm
  Not affected
  dsa · apache2 · debian · bookworm
- 2.4.67-1~deb12u3 · amd64 · bookworm-security
  Not affected
  dsa · apache2 · debian · bookworm
- 2.4.67-1~deb12u3 · arm64 · bookworm-security
  Not affected
  dsa · apache2 · debian · bookworm
[apache2-utils]Unknown
Source package: [apache2]
Details (4)
- 2.4.68-1~deb12u1 · amd64 · bookworm
  Not affected
  dsa · apache2 · debian · bookworm
- 2.4.68-1~deb12u1 · arm64 · bookworm
  Not affected
  dsa · apache2 · debian · bookworm
- 2.4.67-1~deb12u3 · amd64 · bookworm-security
  Not affected
  dsa · apache2 · debian · bookworm
- 2.4.67-1~deb12u3 · arm64 · bookworm-security
  Not affected
  dsa · apache2 · debian · bookworm
[libapache2-mod-md]Unknown
Source package: [apache2]
Details (4)
- 2.4.68-1~deb12u1 · amd64 · bookworm
  Not affected
  dsa · apache2 · debian · bookworm
- 2.4.68-1~deb12u1 · arm64 · bookworm
  Not affected
  dsa · apache2 · debian · bookworm
- 2.4.67-1~deb12u3 · amd64 · bookworm-security
  Not affected
  dsa · apache2 · debian · bookworm
- 2.4.67-1~deb12u3 · arm64 · bookworm-security
  Not affected
  dsa · apache2 · debian · bookworm
[libapache2-mod-proxy-uwsgi]Unknown
Source package: [apache2]
Details (4)
- 2.4.68-1~deb12u1 · amd64 · bookworm
  Not affected
  dsa · apache2 · debian · bookworm
- 2.4.68-1~deb12u1 · arm64 · bookworm
  Not affected
  dsa · apache2 · debian · bookworm
- 2.4.67-1~deb12u3 · amd64 · bookworm-security
  Not affected
  dsa · apache2 · debian · bookworm
- 2.4.67-1~deb12u3 · arm64 · bookworm-security
  Not affected
  dsa · apache2 · debian · bookworm

Observed: Oct 23, 2026, 5:54:25 PM UTC

References

[CERT-Bund public advisories] · [Debian Security Tracker] · [FIRST EPSS] · [Red Hat security advisories and VEX] · [SUSE security advisories and VEX]