Medium severity · published Oct 23, 2026
CVE-2026-89319
JweDirectDecryptorBlock.Decrypt: unchecked _thales_aad length header reachable with forged tag → index-out-of-range / slice-bounds panic and unbounded allocation
New
6.3
CVSS
0.2%
EPSS
No
On KEV
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.
Exploitation
Is it being used?
Exploit prediction (EPSS)0.2% · higher than 11% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
EK
Eclipse KeyPont - GOSE · Eclipse Foundation
0.9.0 through 0.13.0-rc1; before 1.0.0-rc1 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-89319
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-89319
github.com
https://github.com/eclipse-keypont/gose/security/advisories/GHSA-4gj8-hg2r-gw6q
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