CVE-2010-3845: libapache-authenhook-perl 2.00-04 stores usernames and passwords in plaintext in the vhost error log.

This week

CRITICAL 9.8REMOTEWATCHLISTDOWNGRADE

CVE-2010-3845 is a critical-severity flaw (CVSS 9.8) affecting apache authenhook. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

libapache-authenhook-perl 2.00-04 stores usernames and passwords in plaintext in the vhost error log.

Why this priority

Critical severity
Remotely exploitable, no login, no user action
On your watchlist

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	9.8 (Critical)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	1.6% (top 24%)
CISA exploited list	No
Weakness	CWE-200
Published	2017-08-08
Last modified	2026-06-16

Publisher (CNA): Red Hat, Inc. · Vendor: apache authenhook project

Last updated 2026-06-16 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2017-08-08 21:29 UTCPublished CVE record published
2026-06-16 23:23 UTCUpdated Record last modified

apache authenhook project apache authenhook DOWNGRADE

Affected: 2.00-04

Fixed in: no fixed release known

Safe to downgrade to: a release before 2.00-04

1. Check installed version

apt-cache policy apache-authenhook || rpm -q apache-authenhook || apache-authenhook --version

2. No fixed release: DOWNGRADE to a release before 2.00-04 (Debian / Ubuntu)

apt-cache madison apache-authenhook sudo apt install apache-authenhook=<VERSION_BEFORE_2.00-04> sudo apt-mark hold apache-authenhook

2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list apache-authenhook sudo dnf downgrade apache-authenhook-<VERSION_BEFORE_2.00-04> sudo dnf versionlock add apache-authenhook

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2010-3845?

apache authenhook: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2010-3845 being exploited?

CVE-2010-3845 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2010-3845 affect?

CVE-2010-3845 affects apache authenhook. Severity is critical (CVSS 9.8). libapache-authenhook-perl 2.00-04 stores usernames and passwords in plaintext in the vhost error log.

How urgent is CVE-2010-3845?

Priority 63/100. Critical severity; Remotely exploitable, no login, no user action; On your watchlist

Software pages

Perl vulnerabilities

References

← Back to latest CVEs