Denial Of Service | Techlist.io

gitlabApr 22, 20263 min readCurated summary

GitLab Patch Release: 18.11.1, 18.10.4, 18.9.6 | GitLab Docs

GitLab released patch versions 18.11.1, 18.10.4, and 18.9.6 on April 22, 2026, addressing multiple security vulnerabilities and bugs in CE and EE. Self-managed installations should upgrade immediately, while GitLab.com is already patched and GitLab Dedicated customers need no action. The fixes include unauthenticated GraphQL and browser-based attacks, several denial-of-service flaws, and access-control weaknesses. ## Release Scope and Upgrade Guidance - Applies to GitLab Community Edition and Enterprise Edition. - Affects all deployment types unless otherwise specified, including Omnibus, source installations, and Helm charts. - Recommended fixed versions: - 18.11.1 - 18.10.4 - 18.9.6 - GitLab issues detailing security vulnerabilities are made public 30 days after the relevant patch release. - GitLab publishes both scheduled patch releases, issued on the second and fourth Wednesdays, and ad-hoc critical patches for high-severity vulnerabilities. ## High-Severity Vulnerabilities - **CVE-2026-4922 — GraphQL CSRF** - CVSS 8.1. - An unauthenticated attacker could execute GraphQL mutations on behalf of an authenticated user because of insufficient CSRF protection. - Affects versions before 18.9.6, 18.10.4, and 18.11.1. - **CVE-2026-5816 — Web IDE path validation** - CVSS 8.0. - Under certain conditions, improper path validation could allow unauthenticated attackers to execute arbitrary JavaScript in a user’s browser session. - Affects the 18.10 and 18.11 release lines before the listed patches. - **CVE-2026-5262 — Storybook cross-site scripting** - CVSS 8.0. - Improper input validation could allow unauthenticated access to tokens in the Storybook development environment. - Affects versions from 16.1 through the unpatched 18.9, 18.10, and 18.11 releases. ## Denial-of-Service Fixes - **CVE-2025-0186:** Crafted requests to the discussions endpoint could exhaust server resources. - **CVE-2026-1660:** Improper input validation during Jira issue imports could enable resource exhaustion. - **CVE-2025-6016:** Insufficient limits when retrieving notes could cause service disruption. - **CVE-2025-3922:** Resource-allocation weaknesses in the GraphQL API could allow authenticated users to overwhelm the system. - Each issue carries a CVSS score of 6.5 and generally requires authentication. ## Access-Control and Session Fixes - **CVE-2026-6515 — Virtual registry credentials** - CVSS 5.4. - Invalidated or incorrectly scoped credentials could continue accessing Virtual Registries. - **CVE-2026-5377 — Confidential issue titles** - CVSS 4.3. - Authenticated users could potentially view titles of confidential or private issues in public projects. - **CVE-2026-3254 — Mermaid sandbox** - CVSS 3.5. - Improper validation could allow authenticated users to load unauthorized content into another user’s browser. - The release also lists **CVE-2025-9957**, involving improper access control in the project fork relationship API; the provided text does not include its full impact or severity details. Self-managed GitLab administrators should apply the appropriate patch release as soon as possible, especially because several vulnerabilities permit unauthenticated browser or API attacks.

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Denial Of Service Gitlab GraphQL Vulnerability Management+4

gitlabApr 8, 20262 min readCurated summary

GitLab Patch Release: 18.10.3, 18.9.5, 18.8.9 | GitLab Docs

GitLab released patch versions 18.10.3, 18.9.5, and 18.8.9 on April 8, 2026, addressing important security and bug fixes. Self-managed CE and EE installations should upgrade immediately, while GitLab.com is already patched and GitLab Dedicated customers need no action. The fixes cover unauthorized access, denial-of-service vulnerabilities, code injection, XSS, and information disclosure. ## Release Scope and Upgrade Guidance - The patches apply to GitLab Community Edition and Enterprise Edition. - Administrators should upgrade installations affected by the listed vulnerabilities to the latest supported patch release. - GitLab issues describing security vulnerabilities will become public 30 days after the release in which they were fixed. - Patch releases are generally issued on the second and fourth Wednesdays, with urgent ad-hoc releases for critical vulnerabilities. ## Authentication and Authorization Fixes - **CVE-2026-5173 (CVSS 8.5):** Authenticated users could invoke unintended server-side methods through WebSocket connections. - **CVE-2026-2619 (CVSS 4.3):** Auditor users could modify vulnerability flag data in private projects through the AI detection API. - **CVE-2026-1752 (CVSS 4.3):** Developers could modify protected environment settings through authorization flaws in the Environments API. - **CVE-2026-2104:** CSV exports could expose confidential issues assigned to other users because of insufficient authorization checks. ## Denial-of-Service Vulnerabilities - **CVE-2026-1092 (CVSS 7.5):** Unauthenticated attackers could crash or disrupt services through malformed JSON sent to the Terraform state lock API. - **CVE-2025-12664 (CVSS 7.5):** Repeated unauthenticated GraphQL queries could cause denial of service. - **CVE-2026-1403 (CVSS 6.5):** Authenticated users could disrupt Sidekiq workers by importing malformed CSV files. - **CVE-2026-1101 (CVSS 6.5):** Authenticated users could overload GitLab through improperly validated GraphQL SBOM queries. ## Code Execution and Cross-Site Scripting - **CVE-2026-1516 (CVSS 5.7):** Crafted Code Quality report content could leak the IP addresses of users viewing the report. - **CVE-2026-4332 (CVSS 5.4):** Authenticated users could execute arbitrary JavaScript in other users’ browsers through customizable analytics dashboards. ## Information Disclosure - **CVE-2025-9484 (CVSS 4.3):** Certain GraphQL queries could reveal other users’ email addresses to authenticated users. - The release also fixes CSV export authorization issues that could expose confidential issue data. Administrators of self-managed GitLab CE or EE instances should apply 18.10.3, 18.9.5, or 18.8.9 as soon as possible, depending on their supported release branch.

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Denial Of Service Gitlab API GraphQL+4

figmaOct 12, 20222 min readCurated summary

Our approach to security at speed | Figma Blog

Figma’s security team aims to help teams ship quickly without compromising safety. Its approach combines early risk assessment, reusable technical controls, decentralized decision-making, and transparent collaboration rather than rigid mandates. The goal is to make security an enabler of product development. ## Systematically Assessing Risk - Security reviews upcoming features and workflows to identify risks early. - Teams use a three-question “ThreatJam” survey before security office hours, held three times weekly. - For FigJam’s rich link previews, the team identified risks including: - **SSRF**, where attackers could request internal Figma resources. - **Denial-of-service attacks** against linked websites. - Malicious HTML that could deface or execute code within FigJam. - Figma isolated link scraping and parsing in a cloud function running on a separate virtual machine and network. - Additional protections included: - Cloud-function rate limiting. - Temporary storage of scraped data. - Restricting requests to standard HTTP and HTTPS ports. - Limiting parsed HTML to approved tags. - Reusing existing plugin and widget security mechanisms. ## Reusable and Decentralized Security Solutions - Security provides customized guidance while avoiding centralized approval processes. - The team builds reusable libraries, frameworks, documentation, and security patterns. - Solutions developed for one product can serve as case studies for other engineering teams. - Office-hours notes are shared across Figma so teams can understand security reasoning and apply it independently. - This model allows security practices to scale as the company grows. ## Defending Against Phishing and Information Disclosure - Figma uses technical controls to protect employees, devices, and internal data. - Access to internal sites requires a passwordless second factor scoped to the specific site. - New employees receive hardware authenticator keys. - Employees are also encouraged to register biometric authenticators such as Touch ID or Windows Hello. Figma’s model demonstrates that security can move at development speed when teams assess threats early, isolate risky functionality, automate defenses, and share solutions broadly. Companies seeking a similar approach should prioritize reusable controls and security collaboration over process-heavy gates.

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Denial Of Service Cloud Native Multi Factor Authentication Web Security+3