CVE-2001-1023: Xcache 2.1 allows remote attackers to determine the absolute path of web server documents by requesting a URL

Routine

MEDIUM 5.0DOWNGRADE

CVE-2001-1023 is a medium-severity flaw (CVSS 5.0) affecting xcache. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Xcache 2.1 allows remote attackers to determine the absolute path of web server documents by requesting a URL that is not cached by Xcache, which returns the full pathname in the Content-PageName header.

Why this priority

No elevated risk signals yet

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

Risk facts

CVSS score	5.0 (Medium)
EPSS exploit chance	1.5% (top 25%)
CISA exploited list	No
Published	2001-09-21
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: xcache technologies

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

Am I affected?

Timeline

2001-09-21 04:00 UTCPublished CVE record published
2026-06-16 21:55 UTCUpdated Record last modified

xcache technologies xcache DOWNGRADE

Affected: 2.0 · 2.1

Fixed in: no fixed release known

Safe to downgrade to: a release before 2.0

1. Check installed version

apt-cache policy xcache || rpm -q xcache || xcache --version

2. No fixed release: DOWNGRADE to a release before 2.0 (Debian / Ubuntu)

apt-cache madison xcache sudo apt install xcache=<VERSION_BEFORE_2.0> sudo apt-mark hold xcache

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

dnf --showduplicates list xcache sudo dnf downgrade xcache-<VERSION_BEFORE_2.0> sudo dnf versionlock add xcache

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-2001-1023?

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

Is CVE-2001-1023 being exploited?

CVE-2001-1023 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-2001-1023 affect?

CVE-2001-1023 affects xcache. Severity is medium (CVSS 5.0). Xcache 2.1 allows remote attackers to determine the absolute path of web server documents by requesting a URL that is not cached by Xcache, which returns the full pathname in the Content-PageName header.

How urgent is CVE-2001-1023?

Priority 36/100. No elevated risk signals yet.

References

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