CVE-2026-89319
`JweDirectDecryptorBlock.Decrypt` read a 64-bit plaintext length from the `_thales_aad`…
- Risk score
- 40/100
- CVSS
- 6.3 v4.0
- Exploit chance (30 days)
- 0.2%
- Published
- 23 Oct 2026
Open in the live forecast Today's forecast
What to know
- What it is
- 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 erro…
- Affected
- See advisory
- Fix
- Apply the vendor's security update; see the linked advisory.
- Exploitation
- No known exploitation
Why it is Yellow
- CVSS 6.3 medium
References
Original 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.
Last activity 23 Oct 2026. Patch Forecast updates every hour.