CVE-2026-56862
CVE.org · Published
- Record status
- Published
- Identifier year (not publication year)
- 2026
- Source publication
- Source updated
- Imported by cveboard
- Source snapshot
- cve_2026-10-24_midnight_baseline ·
CNA source text (English)
Limit handshake messages we are willing to accept post-handshake in crypto/tls
Handshake messages, such as KeyUpdate, are always considered as state-advancing, regardless of whether a handshake has been completed or not. As a result, a malicious client can keep sending KeyUpdate messages to force the server to keep performing key derivation operations indefinitely.
Scoped product and version facts
Fix information unknown; no fixed version is derived here. Missing information does not prove that no fix exists.
Exploitation unknown; this catalogue does not assess exploitation.
crypto/tls
- Vendor
- Go standard library
- Product
- crypto/tls
- Platforms
- Unknown
- Default status
unaffected- Package
- crypto/tls
- Package collection
- https://pkg.go.dev
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 0 | affected | semver | 1.25.13 | Unavailable | None listed |
| 1.26.0-0 | affected | semver | 1.26.6 | Unavailable | None listed |
| 1.27.0-0 | affected | semver | 1.27.0-rc.3 | Unavailable | None listed |