Critical Vulnerability in Apache Subversion: Server Process Disruption

subversion Updated 02 Oct 2025

Summary

26/09/2019
N/A
Yes i
Medium
6.5

ALPINE-CVE-2018-11782: In Apache Subversion versions up to and including 1.9.10, 1.10.4, 1.12.0, Subversion's svnserve server process may exit when a well-formed read-only request produces a particular answer. Affects subversion versions < 1.12.2-r0. Fixed in 1.12.2-r0. How to fix ↓

Free scan

Check if this vulnerability affects your application

Upload a manifest or SBOM and we'll show whether you're affected, plus every other risky package in the same scan.

Check my app free

No signup required · Results in about 60 seconds

Upload your dependency manifest or SBOM

Drag & drop your file here or

Java Javascript PHP Python Go Rust Ruby Dart C/C++ Elixir CycloneDX SPDX

Upload a supported dependency manifest or SBOM. No installation or source-code access required.

See supported files and SBOM formats
SBOM sbom.json · bom.json · bom.xml · *.spdx.json · *.cdx.json · *.cdx.xml
Java pom.xml · gradle.lockfile · buildscript-gradle.lockfile
Javascript package-lock.json · yarn.lock · pnpm-lock.yaml
PHP composer.lock
Python poetry.lock · requirements.txt · Pipfile.lock
Go go.mod
Rust Cargo.lock
Ruby Gemfile.lock
Dart pubspec.lock
C/C++ conan.lock
Elixir mix.lock
Enter your work email to receive your report link.

Verify your email to view the full report and start 30 days of continuous monitoring. No credit card required.

Sponsored Devnack Mobile apps built by Devnack Design, build and launch iOS and Android apps with a senior product team. From idea to store release Start a project

Background

Apache Subversion (SVN) is a widely used version control system that allows developers to manage changes to source code over time. It provides features such as versioning, branching, and merging, making it essential for collaborative software development. However, certain versions of Subversion are vulnerable to a specific issue that can cause the svnserve server process to exit unexpectedly, disrupting service for users.

Vulnerability Detail

The vulnerability, identified as CVE-2018-11782, affects Apache Subversion versions up to and including 1.9.10, 1.10.4, and 1.12.0. It arises when a well-formed read-only request produces a specific response, leading to the termination of the svnserve server process. This disruption can significantly impact users relying on the server for version control operations, potentially resulting in loss of productivity and data access issues.

How To Fix

Minimum fixed version

1.12.2-r0

This is the first release that contains the fix.

sudo apk add --upgrade subversion

Tip — Not sure which version your app runs? Vulert can match this fix to it. Scan free →

Workaround

As a temporary workaround, users can limit access to the svnserve server or implement network-level controls to mitigate the impact of this vulnerability until the package can be updated.

Conclusion

The CVE-2018-11782 vulnerability in Apache Subversion poses a risk of server process disruption, affecting users' ability to manage their version control effectively. It is crucial to update to the patched version to mitigate this risk and ensure continued service availability.

See every vulnerability recorded for subversion →

Share this vulnerability

FAQ

CVE-2018-11782 is a vulnerability in Apache Subversion that can cause the svnserve server process to exit unexpectedly when handling specific read-only requests.

The vulnerability affects Apache Subversion versions up to and including 1.9.10, 1.10.4, and 1.12.0.

The vulnerability can lead to service disruption for users of the svnserve server, affecting their ability to perform version control operations.

You can use Vulert's playground at Vulert Scanner to check if your application is affected by this vulnerability without requiring any signup.

The CVSS score for CVE-2018-11782 is 6.5, indicating a medium severity level.

Related vulnerabilities

Recent vulnerabilities recorded for subversion.

How To Fix

Minimum fixed version

1.12.2-r0

This is the first release that contains the fix.

sudo apk add --upgrade subversion

Tip — Not sure which version your app runs? Vulert can match this fix to it. Scan free →

Subscribe to Vulert on Telegram
Daily digest of new CVEs, critical and high severity, affected packages and fixes — plus a weekly roundup.
Join the channel →
Help improve this record
Report an issue or send feedback