CVE-2004-1438: The mod_authz_svn Apache module for Subversion 1.0.4-r1 and earlier allows remote authenticated users, with wr

Routine

LOW 2.1WATCHLISTDOWNGRADE

CVE-2004-1438 is a low-severity flaw (CVSS 2.1) affecting subversion. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

The mod_authz_svn Apache module for Subversion 1.0.4-r1 and earlier allows remote authenticated users, with write access to the repository, to read unauthorized parts of the repository via the svn copy command.

Why this priority

On your watchlist

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

Risk facts

CVSS score	2.1 (Low)
EPSS exploit chance	0.7% (top 47%)
CISA exploited list	No
Published	2004-12-31
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: subversion

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

Am I affected?

Timeline

2004-12-31 05:00 UTCPublished CVE record published
2026-06-16 22:07 UTCUpdated Record last modified

subversion subversion DOWNGRADE

Affected: 1.0 · 1.0.1 · 1.0.2 · 1.0.3 · 1.0.4 · 1.0.5

Fixed in: no fixed release known

Safe to downgrade to: a release before 1.0

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 1.0 (Debian / Ubuntu)

apt-cache madison subversion sudo apt install subversion=<VERSION_BEFORE_1.0> sudo apt-mark hold subversion

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

dnf --showduplicates list subversion sudo dnf downgrade subversion-<VERSION_BEFORE_1.0> sudo dnf versionlock add subversion

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-2004-1438?

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

Is CVE-2004-1438 being exploited?

CVE-2004-1438 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-2004-1438 affect?

CVE-2004-1438 affects subversion. Severity is low (CVSS 2.1). The mod_authz_svn Apache module for Subversion 1.0.4-r1 and earlier allows remote authenticated users, with write access to the repository, to read unauthorized parts of the repository via the svn copy command.

How urgent is CVE-2004-1438?

Priority 26/100. On your watchlist

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References

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