The fix for CVE-2026-0672, which rejected control characters in http.cookies.Morsel, was incomplete. The Morsel.update(), |= operator, and unpickling paths were not patched, allowing control characters to bypass input validation. Additionally, BaseCookie.js_output() lacked the output validation applied to BaseCookie.output().
3.10.12-1~22.04.163.12.3-1ubuntu0.153.13.3-13.13.3-23.13.3-43.13.4-13.13.5-13.13.5-23.13.6-13.13.7-13.13.7-1ubuntu0.13.13.7-1ubuntu0.2+2 more3.14.0-13.14.0-1ubuntu0.13.14.0-1ubuntu0.23.14.0-1ubuntu0.33.14.0~a7-0ubuntu13.14.0~b1-13.14.0~b3-13.14.0~rc1-13.14.0~rc2-13.14.0~rc3-12.7.6-8ubuntu0.6+esm303.4.3-1ubuntu1~14.04.7+esm213.5.2-2ubuntu0~16.04.4~14.04.1+esm112.7.12-1ubuntu0~16.04.18+esm223.5.2-2ubuntu0~16.04.13+esm252.7.17-1~18.04ubuntu1.13+esm15Exploitability
AV:NAC:LAT:PPR:LUI:NVulnerable System
VC:LVI:HVA:NSubsequent System
SC:NSI:NSA:NCVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:L/VI:H/VA:N/SC:N/SI:N/SA:N