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.
Published: 2026-10-23
Score: 6.3 Medium
EPSS: n/a
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

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History

Fri, 23 Oct 2026 09:15:00 +0000

Type Values Removed Values Added
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.
Title JweDirectDecryptorBlock.Decrypt: unchecked _thales_aad length header reachable with forged tag → index-out-of-range / slice-bounds panic and unbounded allocation
Weaknesses CWE-129
References
Metrics cvssV4_0

{'score': 6.3, 'vector': 'CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N'}

Subscriptions

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cve-icon MITRE

Status: PUBLISHED

Assigner: eclipse

Published:

Updated: 2026-10-23T08:54:37.681Z

Reserved: 2026-09-11T13:55:57.103Z

Link: CVE-2026-89319

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-10-23T09:17:08.493

Modified: 2026-10-23T09:17:08.493

Link: CVE-2026-89319

cve-icon Redhat

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cve-icon OpenCVE Enrichment

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Weaknesses
  • CWE-129

    Improper Validation of Array Index