Bug 2561291 (CVE-2026-116585) - CVE-2026-116585 github.com/go-jose/go-jose: go-jose: Denial of Service via empty ciphertext buffer during JWE decryption
Summary: CVE-2026-116585 github.com/go-jose/go-jose: go-jose: Denial of Service via em...
Keywords:
Status: NEW
Alias: CVE-2026-116585
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
high
high
Target Milestone: ---
Assignee: Product Security DevOps Team
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Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-10-26 22:12 UTC by OSIDB Bzimport
Modified: 2026-10-27 14:29 UTC (History)
19 users (show)

Fixed In Version:
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Description OSIDB Bzimport 2026-10-26 22:12:32 UTC 
Go JOSE provides an implementation of the Javascript Object Signing and Encryption set of standards in Go, including support for JSON Web Encryption (JWE), JSON Web Signature (JWS), and JSON Web Token (JWT) standards. Prior to 4.1.5, decrypting untrusted JWE ciphertext with A128CBC-HS256, A192CBC-HS384, or A256CBC-HS512 can pass an empty ciphertext buffer to CBC-HMAC unpadding. Insufficient validation allows the empty buffer to be indexed, causing a panic and denial of service. Applications that decrypt attacker-controlled ciphertext with one of these content-encryption algorithms are affected. This issue is fixed in version 4.1.5.
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