CVE-2026-129135
LOW
NVD
CVSS Score
3.7
Severity
LOW
Published
Nov 13, 2026
Vendor
unknown
Description
picoquic before 2026.11.05.3e2e3d3 contains an integer overflow vulnerability in picoquic_decode_time_stamp_frame() that allows remote QUIC peers to corrupt stored timestamps by sending oversized TIME_STAMP values. Attackers on connections negotiating the TIME_STAMP extension can send large values shifted by ack_delay_exponent to wrap the result, corrupting RTT and bandwidth estimation and degrading congestion control.
References
- https://github.com/private-octopus/picoquic
- https://github.com/private-octopus/picoquic/blob/7966b3f6a5f1dc08a844b3bfa0b22b0f8d424736/picoquic/frames.c#L5651
- https://github.com/private-octopus/picoquic/commit/ef21278928771a1ace1c6764cf0e5300d61f7d94
- https://github.com/private-octopus/picoquic/issues/2365
- https://github.com/private-octopus/picoquic/pull/2343