All vulnerabilities
CVE-2026-89312GHSA-xx6h-2jgg-93m2

Eclipse KeyPont - GOSE: AesGcmCryptor.Open passes attacker-controlled nonce to cipher.AEAD.Open without length check, causing panic on wrong-size IV

Eclipse Foundation Eclipse KeyPont - GOSE
Open in ThreatlineRecord JSON
CVSS
6.9Medium
ExploitationNo known exploitationNot in CISA KEV, which does not prove it is unexploitedCISA KEV
Exploit odds (EPSS)0.25%Chance of exploitation activity in the next 30 days, higher than 15% of CVEs. Scored 23 Oct 2026FIRST EPSS
Fixed in1.0.0-rc4Fixed versionCVE List
Published23 Oct 2026Updated 23 Oct 2026CVE List

What fixes it

A fixed version on one release line is not the upgrade target for every line. Check your exact version and any vendor backports.

Description

AesGcmCryptor.Open passed a caller-supplied nonce straight to cipher.AEAD.Open without checking its length. The Go standard library panics rather than returning an error when a GCM nonce is not exactly NonceSize() bytes, so a JWE carrying a wrong-sized IV crashes the decrypting goroutine.

Text from CVE List

Affected versions 4

  • Eclipse KeyPont - GOSEaffected: 0.7.3 through 0.13.0-rc1CVE List
  • Eclipse KeyPont - GOSEaffected: all versions before 1.0.0-rc4CVE List
  • github.com/ThalesGroup/gose, go>= 0.7.3, <= 0.13.0-rc1GitHub
  • github.com/eclipse-keypont/gose, go< 1.0.0-rc4GitHub

References 1