Security context

What an agent needs to avoid regressing past fixes and find the next vuln in this repo.

colinmollenhour/php-redis-session-abstract
master @ defae6e
2
Fixes
0
CVEs
HIGH
Peak severity
Highlights
Auth Bypass: 1 prior fix. Scrutinize any change in this area.
CLI: most-fixed (1 issue). Treat as high-risk during review.
1 high-severity fix in this history; regressions here are high-impact.
Recurring patterns

The bug types that recur here, drawn from past fixes, not open vulnerabilities.

Auth Bypass: Administrative scripts intended solely for CLI execution could be executed remotely via web requests when PHP register_argc_argv was enabled, allowing unauthorized actions. This was mitigated by strictly validating the PHP_SAPI environment instead of relying on the presence of the global $argv array.
Race Condition: An inverted logic bug in the session handler disabled session locking by default. This left concurrent session writes highly vulnerable to race conditions, potentially leading to session data corruption or loss.