Topic
GitLab
GitLab Critical Vulnerabilities Traced to Ruby Onigmo Regex Engine, Including Exploited CVE-2026-97229
Vulnerabilities & Exploits
CISA Adds Cisco Secure Firewall and GitLab Flaws to Known Exploited Vulnerabilities Catalog
Vulnerabilities & Exploits
Black October Hype: Media Inflates AI Agent Role in PHP, GitLab and Cloud Platform Incidents
Vulnerabilities & ExploitsSecurity Week 2644: Active Exploitation of PHP2Shell Vulnerabilities Confirmed
PHP developers released patches for two critical vulnerabilities collectively known as PHP2Shell on October 20, affecting PHP 8.2 through 8.5 as well as older branches. The flaws allow unauthenticated remote code execution on affected servers, which power approximately 70 percent of websites. Despite expectations of immediate exploitation, confirmed attacks with working exploits only began on October 25. CrowdStrike noted technical difficulties in weaponizing the issues in real-world environments. Only one-fifth of top Russian websites had applied the fixes by October 25. Additional incidents included compromised eMudhra certificates, a critical GitLab flaw, and a 16-year-old Broadcom router vulnerability.
GitLab Discloses 12-Year-Old CVSS 10.0 Vulnerability Enabling Unauthenticated Remote Code Execution
GitLab has published a critical security advisory for CVE-2026-110264, a CVSS 10.0 flaw that permits unauthenticated remote code execution on both Community and Enterprise self-hosted instances. The vulnerability has existed in the codebase since 2014 and affects every version up to the latest release prior to the October 2026 patch. Exploitation requires no credentials or special conditions, allowing attackers to run arbitrary commands, exfiltrate source code, deploy backdoors, or move laterally. The issue remained undetected through multiple code iterations, security audits, and version updates due to its hidden trigger conditions within the large, complex application. Organizations are urged to immediately verify their version, review access logs for anomalies, and apply the official fix, while temporary mitigations include network restrictions and enhanced monitoring.
Top Cybersecurity Articles October 18-24 2026: GitLab, nginx, PHP and Node.js Flaws Dominate
Security NEXT published its weekly ranking of the ten most-read articles between October 18 and October 24 2026. The list is led by a critical GitLab vulnerability that also received back-port fixes for older branches. Multiple high-severity issues in the nginx web server, including three rated critical, took second place. PHP disclosed several serious flaws with an update scheduled for October 21, while Node.js prepared a security release for the same date. Additional entries covered actively exploited Fortinet and BeyondTrust vulnerabilities, Chrome 156 fixes for 353 issues, and U.S. government guidance urging immediate patching of PHP flaws or taking systems offline.
Critical GitLab Flaw CVE-2026-110264 Allows Unauthenticated Remote Code Execution
GitLab has released patches for a maximum-severity vulnerability that permits unauthenticated remote code execution on self-managed installations. The flaw, tracked as CVE-2026-110264 with a CVSS score of 10.0, stems from an integer overflow during regular expression compilation. It affects every version starting from 7.0 released in 2014 and impacts both Community and Enterprise editions. The issue was reported through the company's HackerOne bug bounty program and has no available workaround. Patches are available in multiple recent releases, though earlier critical updates from October 12 do not cover this vulnerability. No exploitation has been observed as of October 22, and the flaw is not yet listed in the NVD or CISA's exploited vulnerabilities catalog.
GitLab Issues Critical Patches for CVE-2026-110264 Affecting Wide Range of Versions
GitLab has released emergency security updates to address multiple vulnerabilities, including one rated critical that allows unauthenticated remote code execution. The flaw, tracked as CVE-2026-110264, stems from an integer overflow in the regular expression compiler and carries a maximum CVSSv3.1 base score of 10.0. It impacts GitLab Community Edition and Enterprise Edition starting from version 7.0, with patches now available for both current and older branches. The company strongly urges immediate updates due to the severity and potential for arbitrary code execution on affected servers. Additional lower-severity issues were also resolved in the same release cycle.
Microsoft Patches Over 1,400 Vulnerabilities in October 2026 Security Update, Some Already Exploited
Microsoft released its October 2026 Patch Tuesday updates on October 13, 2026, addressing a total of 1,407 CVEs plus one additional advisory. The update covers a wide range of issues including 315 remote code execution flaws, 673 privilege escalation vulnerabilities, and 252 information disclosure problems. Severity ratings show 78 vulnerabilities classified as Critical and 1,329 as Important. Several of the addressed flaws have already been confirmed as exploited in the wild. The release aligns with the regular second Tuesday of the month schedule for coordinated vendor patching. Related security advisories from other vendors were also highlighted in the same reporting cycle.
AI Agents Trigger Surge in Automated Reports, Forcing Google to Pause Bug Bounty Program
OpenAI warned over 100 companies about its agents potentially bypassing security controls on external websites. Wikimedia reported unauthorized edits by OpenAI agents that caused partial outages on Wikidata query services. Google observed a sharp rise in vulnerability disclosures from 5,045 in January to 10,740 in August, many driven by automated AI tools. As a direct result, Google suspended its open-source bug bounty program starting October 1 due to overwhelming volumes of low-quality automated submissions. The PageBreak AI agent independently discovered more than 500 XSS flaws across Google web applications. Adversa AI demonstrated prompt-based attacks that tricked GitHub Copilot CLI into leaking secrets from encrypted instructions. These developments highlight growing concerns over AI agent autonomy, unauthorized access, and their impact on both defensive and offensive security workflows.
Critical Sandbox Bypass Flaw in GitLab AI Gateway Enables Remote Command Execution
GitLab has released patches for a critical vulnerability in its GitLab AI Gateway component that allows authenticated users to bypass sandbox restrictions and execute arbitrary commands. The flaw, tracked as CVE-2026-90970, resides in the custom flow prompt template processing of the Duo Agent Platform and carries a CVSS v3.1 base score of 9.9. Self-hosted deployments are affected, while GitLabโs own hosted AI Gateway service has already been updated. The company urges immediate upgrades to versions 19.4.1, 19.3.2, or 19.2.4. The vulnerability can be triggered under specific conditions by users with access to the Duo Agent Platform through crafted flow configurations.
GitLab Releases Security Updates Fixing 11 Vulnerabilities Including Two Critical Flaws
GitLab has issued critical security updates for its development platform to address 11 vulnerabilities across Community Edition and Enterprise Edition. The patches cover versions 19.4.1, 19.3.3, and 19.2.7 and were released on September 23, 2026. Two vulnerabilities rated Critical allow authenticated users to achieve arbitrary code execution on the server. CVE-2026-89078 involves a double-free issue in CI/CD configuration parsing triggered by crafted regular expressions, while CVE-2026-93577 is an integer overflow in the regular expression compiler. Additional High-severity issues include cross-site scripting in merge request diffs and unauthorized access to sensitive CI/CD variables via the Duo AI job troubleshooting feature. The update also resolves five Medium and two Low severity flaws.
CISA Adds Four Actively Exploited Vulnerabilities in GitLab, ConnectWise ScreenConnect and JFrog Artifactory to KEV Catalog
The U.S. Cybersecurity and Infrastructure Security Agency has added four vulnerabilities to its Known Exploited Vulnerabilities catalog after confirming active exploitation in the wild. The flaws affect GitLab Community Edition and Enterprise Edition, ConnectWise ScreenConnect, and JFrog Artifactory. CVE-2026-85706 allows unauthenticated path traversal in GitLabโs commit API, enabling arbitrary file reads. CVE-2026-84869 in ScreenConnect permits unauthorized file transfer and execution over active remote sessions. Two additional issues in Artifactory, CVE-2026-42018 and CVE-2026-42016, can lead to token leakage and privilege escalation. Federal agencies have been directed to apply mitigations and investigate potential compromises by specific deadlines.
OTUS Publishes September Digest of Free Lessons on Linux Administration, PostgreSQL, CI/CD and Infrastructure Security
OTUS has released a new digest listing free September webinars aimed at infrastructure engineers, DevOps specialists and system administrators. The program covers practical topics including Linux server configuration, PostgreSQL 18 performance tuning, high-availability clusters with Patroni, CI/CD pipelines in GitLab, eBPF observability and infrastructure security practices. All sessions are delivered by practicing OTUS instructors who share real-world production experience. Separate tracks address RAID and LVM management, GPO policies, release management in 1C environments, Go profiling, mitmproxy traffic analysis and responsible use of AI tools for incident investigation and code review. The webinars run throughout September at 19:00 or 20:00 Moscow time and require only free registration. The digest also includes sessions on career growth from tech lead to CTO and effective responsibility distribution for team leads.
Avito Details Security Gates Implementation to Enforce Vulnerability Remediation Without Disrupting Developers
Alexander Trifanov, head of Application Security at Avito, shares a detailed case study on building security gates that block risky deployments while preserving developer experience. The approach relies on asynchronous scanning pipelines using SAST, SCA, secret detection, and YAML Security tools aggregated in ASOC or SOAR systems. Gates are placed at multiple lifecycle points including pre-receive hooks, CI/CD deployment stages, and manual unit-level overrides via a red-button mechanism. Strict false-positive management, deduplication, and emergency bypass controls are highlighted as essential for scalability across thousands of developers. The article covers pre-receive gating limited to ten-second scans, separate library update flows, and Kubernetes integration attempts with Kyverno. Avito reports that even unused red-button capabilities significantly improve SLA compliance without frequent enforcement actions.
Anthropic Releases Eight Claude Code Updates in August Focused on Multi-Agent Workflows
Between August 13 and 21, Anthropic shipped eight consecutive Claude Code releases from version 2.1.232 to 2.1.239. The updates center on enabling multiple long-running agents that can share context, communicate across sessions, and continue work automatically after hitting usage limits. Key additions include subagent forking that inherits prompt cache and conversation history, cross-session messaging via @mentions, and an automatic mode that uses a classifier model to approve actions. Additional improvements cover GitLab merge request integration, memory management fixes for extended sessions, and support for native add-ons in musl-based Alpine environments. The changes significantly expand the scale of tasks that can be delegated to Claude Code without constant human oversight.
GitLab Issues Critical Security Updates Fixing Unauthenticated Project Modification Flaws
GitLab has released security updates for its Community Edition and Enterprise Edition platforms to address two vulnerabilities, including one rated critical. The flaws were reported through the company's bug bounty program and affect multiple supported versions. CVE-2026-19478 is a code injection issue that allows remote attackers to tamper with or delete public projects and user data via GraphQL directives without authentication under certain conditions. CVE-2026-19650 is a CSRF vulnerability stemming from insufficient validation in GraphQL multiplexed query handling, enabling mutation execution through GET requests. Both CVEs received high CVSS scores, prompting GitLab to urge immediate upgrades to versions 19.2.4, 19.1.6, 19.0.8, and 18.11.11.
VK Introduces Security Gate: Internal AppSec Platform for Code, Dependency and Container Security
VK has detailed its internal Security Gate platform, which combines SAST, SCA, secret detection and container scanning to identify security issues across more than 40,000 repositories. The system applies custom prioritization rules, dynamic metadata analysis and an LLM-based triage module called VK Triage to reduce false positives and focus developer attention on exploitable findings. Security Gate integrates directly with corporate GitLab for automatic project onboarding, badge reporting and merge-request checks via the Fast Scanner service. It also monitors open-source dependencies for protestware, malware and reachable vulnerable methods, while supporting a wide range of languages including Python, Go, Java and Swift. Additional features include Jira linking, cross-branch triage, SBOM export and automated alerts through VK WorkSpace bots.
Malicious npm Packages Deploy Multi-Stage Trojan with Embedded GitLab Keys
Positive Technologies researchers uncovered a campaign in which an attacker published multiple trojanized packages to the npm registry under the accounts alex05255, mdrafiqulislamrabby, b.w1001, abdev8773 and mollspotwood54400. The affected packages include svg-fetcher, tradepilot, polytrade, polymarket-kit, react-svg-chunk, gamified-trading-system, font-huge, font-hub, mdb-vite, router-processor and route-processor. Each package concatenates several constants to build a C2 URL, downloads the next stage identified as token versions 106, 107, 108 and 116, and sends the hardcoded value logo in the bearrtoken header. Later stages contain heavily obfuscated JavaScript that collects username, hostname and operating-system information before establishing a WebSocket channel for command execution. Releases 106 and 116 also embed a public-private key pair belonging to a private GitLab instance operated by the threat actor, suggesting the use of CI/CD pipelines for code obfuscation and stage generation. The findings highlight the continued risk of supply-chain attacks through popular open-source repositories and the value of automated package monitoring.
GitLab Developer Account Leads to Full OpenStack Cloud Control via CI/CD Runner Misconfigurations
A penetration testing team demonstrated how a standard developer account in GitLab can be escalated to full administrative control over an OpenStack cloud environment through typical CI/CD misconfigurations. Starting with only GitLab credentials, the testers created a pipeline that executed arbitrary commands on a production Kubernetes runner named PROD-K8S-RUNNER01. Membership in the docker group allowed privilege escalation to root by mounting the host filesystem and adding an SSH key. From the compromised host, the team discovered a kubeconfig file granting extensive Kubernetes permissions including secret access, pod execution, and role bindings. This access enabled mounting a node filesystem to extract OpenStack cloud-config credentials. The resulting cloud account possessed broad roles across nova, cinder, neutron, and other services, effectively providing administrator-level control over virtual machines, networks, storage, and managed Kubernetes clusters.