55 matches found
CVE-2026-77587
A flaw was found in Tor. A malicious exit node could exploit a use-after-free vulnerability in the handling of conflux objects. This occurs when a recovery leg attempts to revive a conflux set whose last linked leg has already been closed. Successful exploitation of this flaw could lead to a clie...
SUSE CVE-2026-77587
Tor before 0.4.9.11 is prone to a use-after-free and potential double free of a conflux object when a recovery leg revives a conflux set whose last linked leg has already been closed. A malicious exit node could use this to crash a client. This is TROVE-2026-026...
Linux Distros Unpatched Vulnerability : CVE-2026-77587
The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - Tor before 0.4.9.11 is prone to a use-after-free and potential double free of a conflux object when a recovery leg revives a conflux set whose last linked leg h...
DEBIAN-CVE-2026-77641
tor before 0.4.9.9 was prone to a NULL write after free when sending a CONFLUXSWITCH cell fails. The return value of relaysendcommandfromedge was ignored, so a send failure which calls circuitmarkforclose and removes the leg via cfxdelleg would go undetected, causing the caller to write to the...
CVE-2026-77584
Tor before 0.4.9.10 did not reject a CONFLUXLINK cell that arrives on a circuit which already has attached streams. A malicious client could send a RELAYCOMMANDBEGIN before the CONFLUXLINK on the same circuit, attaching an exit stream that would later end up orphan leaving a dangling circuit...
CVE-2026-77587
Tor before 0.4.9.11 is prone to a use-after-free and potential double free of a conflux object when a recovery leg revives a conflux set whose last linked leg has already been closed. A malicious exit node could use this to crash a client. This is TROVE-2026-026...
DEBIAN-CVE-2026-77587
Tor before 0.4.9.11 is prone to a use-after-free and potential double free of a conflux object when a recovery leg revives a conflux set whose last linked leg has already been closed. A malicious exit node could use this to crash a client. This is TROVE-2026-026...
CVE-2026-77641
tor before 0.4.9.9 was prone to a NULL write after free when sending a CONFLUXSWITCH cell fails. The return value of relaysendcommandfromedge was ignored, so a send failure which calls circuitmarkforclose and removes the leg via cfxdelleg would go undetected, causing the caller to write to the...
CVE-2026-77641
tor versions before 0.4.9.9 are affected by a NULL write after free in the CONFLUX protocol handling. When sending a CONFLUX_SWITCH cell fails, the return value of relay_send_command_from_edge() is ignored. The failed send triggers circuit_mark_for_close() and removes the circuit leg via cfx_del_...
CVE-2026-77641
tor before 0.4.9.9 was prone to a NULL write after free when sending a CONFLUXSWITCH cell fails. The return value of relaysendcommandfromedge was ignored, so a send failure which calls circuitmarkforclose and removes the leg via cfxdelleg would go undetected, causing the caller to write to the...
CVE-2026-77587
Tor before 0.4.9.11 is prone to a use-after-free and potential double free of a conflux object when a recovery leg revives a conflux set whose last linked leg has already been closed. A malicious exit node could use this to crash a client. This is TROVE-2026-026...
EUVD-2026-63593
Tor before 0.4.9.11 is prone to a use-after-free and potential double free of a conflux object when a recovery leg revives a conflux set whose last linked leg has already been closed. A malicious exit node could use this to crash a client. This is TROVE-2026-026...
CVE-2026-77587
Tor versions before 0.4.9.11 are affected by a use-after-free (and potential double free ) vulnerability in the handling of conflux objects . The root cause occurs when a recovery leg revives a conflux set whose last linked leg has already been closed, leaving a dangling pointer. A malicious exit...
CVE-2026-77587
Tor before 0.4.9.11 is prone to a use-after-free and potential double free of a conflux object when a recovery leg revives a conflux set whose last linked leg has already been closed. A malicious exit node could use this to crash a client. This is TROVE-2026-026...
CVE-2026-77584
Tor before 0.4.9.10 fails to reject a CONFLUX_LINK cell on a circuit with attached streams; a malicious client sends RELAY_COMMAND_BEGIN first, orphaning an exit stream that leaves a dangling circuit back-pointer and triggers use-after-free when the circuit is freed. CVSS 3.1 scores 7.0 (HIGH). F...
CVE-2026-77584
Tor before 0.4.9.10 did not reject a CONFLUXLINK cell that arrives on a circuit which already has attached streams. A malicious client could send a RELAYCOMMANDBEGIN before the CONFLUXLINK on the same circuit, attaching an exit stream that would later end up orphan leaving a dangling circuit...
PT-2026-79132
Tor before 0.4.9.10 did not reject a CONFLUX LINK cell that arrives on a circuit which already has attached streams. A malicious client could send a RELAY COMMAND BEGIN before the CONFLUX LINK on the same circuit, attaching an exit stream that would later end up orphan leaving a dangling circuit...
PT-2026-79151
tor before 0.4.9.9 was prone to a NULL write after free when sending a CONFLUX SWITCH cell fails. The return value of relay send command from edge was ignored, so a send failure which calls circuit mark for close and removes the leg via cfx del leg would go undetected, causing the caller to write...
PT-2026-79133
Tor before 0.4.9.11 is prone to a use-after-free and potential double free of a conflux object when a recovery leg revives a conflux set whose last linked leg has already been closed. A malicious exit node could use this to crash a client. This is TROVE-2026-026...
Security update for tor (moderate)
openSUSE Security Update: Security update for tor Announcement ID: openSUSE-SU-2026:0188-1 Rating: moderate References: Affected Products: openSUSE Backports SLE-15-SP7 An update that contains security fixes can now be installed. Description: This update for tor fixes the following issues: - Upda...