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Critical Keycloak Password Reset Flaw Could Let Unauthenticated Attackers Take Over Any Account

Red Hat patched critical Keycloak flaw CVE-2026-18963 (CVSS 9.1) allowing unauthenticated attackers to take over any account, including administrative ones.

Keycloak and Red Hat patched CVE-2026-18963, a CVSS 9.1 flaw (CWE-640) caused by improper state validation in the reset-credentials flow, letting an unauthenticated remote attacker force a password reset without the emailed action token and achieve full account takeover, including admin accounts. Upstream Keycloak 26.7.2 and Red Hat Build of Keycloak 26.4.15/26.6.6 contain fixes; four RHSA errata were issued August 18, 2026. No evidence of exploitation or public exploits exists as of August 24, 2026; mitigation is disabling the Forgot Password feature in all realms.

CVE-2026-76187: Apache Airflow Keycloak provider: Any realm client's credentials mint an Airflow session JWT

Apache Airflow Keycloak provider before 0.10.0 lets any confidential client's credentials in the realm mint an Airflow session JWT.

CVE-2026-76187 affects apache-airflow-providers-keycloak before 0.10.0. The unauthenticated token endpoint accepts a client-credentials grant for any confidential client registered in the Keycloak realm, not only the client configured for Airflow. No allowlist restricts which client ids may authenticate, so credentials of an unrelated application can obtain an Airflow session JWT. Severity is rated moderate.

GPT-5.6 Luna vs. GPT-6 Astra: Is a $1.20 Model Good Enough for Code Review?

Entelligence benchmarks GPT-5.6 Luna ($1.20/M output) against GPT-6 Astra for code review: Luna found 69 verified bugs at 3.6% of Astra's cost.

Entelligence compared GPT-5.6 Luna ($0.20/$1.20 per million tokens) against GPT-6 Astra ($10/$50) on 50 benchmark pull requests from Cal.com, Sentry, Discourse, Keycloak, and Grafana. Astra verified 92 bugs versus Luna's 69, with precision of 96% versus 74%, and Astra caught 19 of 24 security bugs while Luna found only 9. Luna cost $0.20 total versus Astra's $5.66 and reviewed faster at 23 seconds versus 36, with the widest quality gap on Keycloak authentication and permission logic (6 vs 14 verified bugs). Running both models would find 82% of the 143 verified bugs for $5.86 total.

⚡ Weekly Recap: AI-Powered PLC Attacks, GitLab Attacks, Stripe Key Leaks and More

US agencies warn of AI-assisted attacks on exposed Siemens PLCs; the week also saw GitLab CVE-2026-19478 exploited and trojanized npm packages found.

The weekly recap leads with a US government warning that threat actors use AI-generated scripts and Censys/ZoomEye scanning to attack internet-exposed Siemens S7 PLCs in water, energy and manufacturing, calling it an active threat. Other stories include active exploitation of GitLab CVE-2026-19478 (CVSS 9.4, unauthenticated project rewriting), 14 trojanized npm packages delivering the RedC2 4.0 Linux backdoor, and the Zombie Card attack that revives expired Visa cards for contactless payment fraud. It also covers suspected Russian clusters UNC6293, UNC7005 and UNC5976 phishing campaigns, a faster Cloudflare Workers Spectre JWT leak, and a bespoke Cl0p JSP web shell deployed after exploiting PTC Windchill flaws.

The Hacker News · 18d agoThreat actor in the wildCVE-2026-194781