{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-123857 in the wild and no public exploit code.","exposure":"","fix":"No fix has been published for CVE-2026-123857 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-123857 is a medium-severity vulnerability in JetBrains PhpStorm, published on 6 Nov 2026."},"fix_prompt":"Check this codebase for CVE-2026-123857 and fix it if it is affected.\n\nWhat it is: CVE-2026-123857 is a medium-severity vulnerability in JetBrains PhpStorm, published on 6 Nov 2026. \nExploitation: There is no known exploitation of CVE-2026-123857 in the wild and no public exploit code.\n\nAffected product: JetBrains PhpStorm. No package-level version data is available, so check the vendor advisory linked from the reference page.\n\nTask:\n1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.\n2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.\n3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.\n4. Run the tests and summarise what changed and why.\n5. If nothing in the project is affected, say so and change nothing.\n\nReference: https://insights.sbomify.com/CVE-2026-123857/ (Markdown: https://insights.sbomify.com/CVE-2026-123857/index.md)","id":"CVE-2026-123857","markdown":"https://insights.sbomify.com/CVE-2026-123857/index.md","name":"CVE-2026-123857","record":{"aliases":["GHSA-x28h-qvqp-4h33"],"analysis":null,"analysis_generated_by":null,"assigner":"JetBrains","cpe":[],"cvss":{"score":4.3,"severity":"medium","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N","version":"3.1"},"cwes":[{"id":"CWE-611","name":"Improper Restriction of XML External Entity Reference"}],"description":"In JetBrains PhpStorm before 2026.3 xXE was possible in untrusted projects via PHPMD ruleset autodetection","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":null,"headline":"In JetBrains PhpStorm before 2026.3 xXE was possible in untrusted projects via PHPMD ruleset autodetection","id":"CVE-2026-123857","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":null,"year":"2026"},"n_packages":0,"n_references":1,"next":{"headline":"In JetBrains PhpStorm before 2026.3 project files could be automatically uploaded to a deployment server from untrusted projects","id":"CVE-2026-123858"},"nickname":null,"packages":[],"prev":{"headline":"In JetBrains Toolbox App before 3.6.1 nTLM hash disclosure was possible via SVG tool icons from a Remote Development server","id":"CVE-2026-123856"},"products":["PhpStorm"],"published":"2026-11-06","related":[],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":"no","exploitation":"none","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-11-06","vendors":["JetBrains"]},"summary":null,"url":"https://insights.sbomify.com/CVE-2026-123857/"}