Security Vulnerabilities
Tor before 0.4.9.9 was prone to a compression bomb bypass where an attacker could concatenate many gzip or zlib sub-streams, each just under the per-stream detection threshold, to avoid the compression bomb check entirely. This is TROVE-2026-022.
CVSS Score
5.3
EPSS Score
0.002
Published
2026-08-20
tor before 0.4.9.9 was prone to an infinite loop when decompressing a truncated zlib/gzip stream with done=1. A truncated stream never reaches Z_STREAM_END, causing zlib to return Z_BUF_ERROR with no input remaining, which buf_add_compress() mistook for a full output buffer and retried forever. Fixed by returning TOR_COMPRESS_ERROR in that case so the caller can abort cleanly. This is TROVE-2026-021.
CVSS Score
3.7
EPSS Score
0.002
Published
2026-08-20
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 to the now-freed current leg and resulting in a crash. This is TROVE-2026-017.
CVSS Score
6.5
EPSS Score
0.002
Published
2026-08-20
Incorrect authorization in Workers in Google Chrome prior to 151.0.7922.173 allowed a remote attacker who had compromised the renderer process and leveraged social engineering to bypass web origin policy via a crafted HTML page. (Chromium security severity: High)
CVSS Score
8.1
EPSS Score
0.004
Published
2026-08-20
Race condition in V8 in Google Chrome prior to 151.0.7922.173 allowed a remote attacker to execute arbitrary code inside the sandbox via a crafted HTML page. (Chromium security severity: High)
CVSS Score
7.5
EPSS Score
0.003
Published
2026-08-20
Use after free in DOM in Google Chrome prior to 151.0.7922.173 allowed a remote attacker to execute arbitrary code inside the sandbox via a crafted HTML page. (Chromium security severity: High)
CVSS Score
8.8
EPSS Score
0.004
Published
2026-08-20
Buffer overflow in Network in Google Chrome prior to 151.0.7922.173 allowed a remote attacker to execute arbitrary code outside the sandbox via a crafted HTML page. (Chromium security severity: High)
CVSS Score
8.8
EPSS Score
0.005
Published
2026-08-20
Improper resource control in Linux Toolkit Theming in Google Chrome prior to 151.0.7922.173 allowed a remote attacker who had compromised the renderer process to execute arbitrary code outside the sandbox via a crafted HTML page. (Chromium security severity: High)
CVSS Score
8.8
EPSS Score
0.005
Published
2026-08-20
Use after free in Chromoting in Google Chrome prior to 151.0.7922.173 allowed a remote attacker to execute arbitrary code outside the sandbox via crafted network traffic. (Chromium security severity: Critical)
CVSS Score
8.8
EPSS Score
0.004
Published
2026-08-20
Privilege elevation in Import in Google Chrome prior to 151.0.7922.173 allowed a remote attacker leveraging social engineering to potentially execute arbitrary code outside the sandbox via a crafted file. (Chromium security severity: High)
CVSS Score
8.8
EPSS Score
0.004
Published
2026-08-20