What’s Vulnerable › Vulnerabilities
CVE-2026-89319: JweDirectDecryptorBlock.Decrypt: unchecked _thales_aad length header reachable with forged tag → index-out-of-range / slice-bounds panic and unbounded allocation
- Severity: medium (CVSS 6.3 v4.0)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.2% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2026-10-23 · updated 2026-10-23
- Weakness: CWE-129
Description
`JweDirectDecryptorBlock.Decrypt` read a 64-bit plaintext length from the `_thales_aad` protected-header field and used it without any validation. A truncated field panics `binary.BigEndian.Uint64`, an oversized value drives an unbounded allocation, and a value larger than the decrypted block panics with a slice-bounds error.
Affected products
- Eclipse Foundation Eclipse KeyPont - GOSE: from 0.9.0 through 0.13.0-rc1; before 1.0.0-rc1 — fixed in 1.0.0-rc1
How to fix
Upgrade to a fixed version: Eclipse Foundation Eclipse KeyPont - GOSE 1.0.0-rc1. Check the vendor advisory for mitigations.
References
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