Tor before 0.4.9.12 interprets the CC_RESPONSE extension even when CC_REQUEST was not sent, which allows remote attackers to cause a denial of service (crash) because of corrupted congestion-control state(CVE-2026-87724) Do not purge memory for OOM from within low-level code (TROVE-2026-043). A hostile cache could trick a client into falsely believing that certain relays' microdescriptors or router descriptors were unusable (TROVE-2026-034). Fix a use-after-free error (TROVE-2026-036). Limit the size of consensus diffs, in bytes and in lines, to prevent a class of memory-based denial-of-service attacks (TROVE-2026-042). Negotiate CGO cryptography with every hop that supports it (TROVE-2026-033). Validate DNS names for complience whenever providing or receiving them from evdns, to limit exposure to a class of application and library bugs (TROVE-2026-035).