GHSA-rc6v-5rmx-w5mv: github.com/arnika-project/arnika

arnika is affected by medium-severity issues in UDP rotation, PQC handling, and KMS TLS

CVSS 2.8 Low

Published by the GitHub Advisory Database at 15 May 2026, 18:13 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

Package	Ecosystem	Affected	Fixed in
github.com/arnika-project/arnika	Go	<1.0.1	1.0.1

Identifiers

GHSA-rc6v-5rmx-w5mv · GO-2026-5614

Weakness (CWE)

CWE-294 · CWE-295 · CWE-345

Machine-written summary

Summary written by Claude Haiku from the source advisory. Not reviewed by a person.

Arnika versions before 1.0.1 have three medium-severity issues. The UDP key-rotation client does not check ACK timestamps, so a network attacker positioned in the middle can replay a stale ACK and break the tunnel. The PQC key loader accepts an empty key file and derives keys without the PQC input, and the KMS client disables TLS certificate verification. Upgrade to arnika 1.0.1.

Written 6 Nov 2026.

Not analysed yet

We haven’t published our analysis of this Advisory yet. Once a person has reviewed it, this page will say what’s vulnerable, what has to be true for your app to be affected, and how to check.

Severity and exploitation

Score	Rating	CVSS	Vector	Source
2.8	Low	3.1	CVSS:3.1/AV:P/AC:L/PR:H/UI:R/S:U/C:L/I:L/A:N	GitHub Advisory Database

CISA KEV Not listed.
EPSS No score.

Timeline

31 Oct 2026, 15:06 UTC First seen by agentprime
31 Oct 2026, 15:06 UTC Confirmed by OSV

Sources

Facts on this page come from the GitHub Advisory Database (CC-BY 4.0), OSV and the other sources listed, as published. We don’t reproduce full advisory descriptions, which can contain exploit code.