CVE-2026-104853
What it is
Nx is a monorepo solution for TypeScript and polyglot codebases. From 13.10.0 until 22.7.10 and 23.2.1, Nx migration planning reads the nx-migrations.migrations value from a target package manifest without validating that it is a contained relative path. A hostile direct dependency or a package introduced through a trusted package's packageGroup can supply .. segments or an absolute path, causing nx migrate to join an escaping destination onto its temporary directory. The migration archive can then write attacker-controlled bytes outside the temporary directory, while opening the destination stream can truncate an existing writable file even when no archive entry matches. This occurs during migration planning before review of the migration list or use of --run-migrations; the vulnerable installed Nx copy is reached when the normal nx@latest handoff is bypassed with NX_USE_LOCAL, NX_MIGRATE_USE_LOCAL, NX_MIGRATE_CLI_VERSION, --run-id, or fallback after a temporary-install failure. This issue is fixed in versions 22.7.10 and 23.2.1.
At a glance
- Exploitability
- Can be exploited locally on the machine without logging in, but needs a user to act. High risk of data tampering.
- Exploit odds
- 0.2% chance of exploitation in the next 30 days (EPSS).
- Fix
- A patch, advisory or fixed version is referenced. Upgrade or apply it.
Timeline
- PublishedDisclosed publicly on CVE.org and NVD
- Last updatedMost recent change to the record
Why it ranks here
- Exploited in the wild: no, CISA does not list it.
- Exploit odds: 0.2% in the next 30 days (EPSS).
- Severity: 5.8 MEDIUM (CVSS).
- Fix: a patch or advisory is linked.
Details
- Published
- Last modified
- Exploit probability
- 0.2% · EPSS, next 30 days
- Weakness
- CWE-22 · Path traversal
- Record status
- Awaiting Analysis
Attack profile CVSS 4.0 · 5.8
- Attack vector
- Local
- Complexity
- Low
- Attack requirements
- Present
- Privileges needed
- None
- User interaction
- Passive
- Confidentiality
- Low
- Integrity
- High
- Availability
- Low
Raw vector
CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:P/VC:L/VI:H/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Is it in your code?
Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.
Read https://cve-list.com/agent/cve/CVE-2026-104853.md and follow it. Check whether this project is affected by CVE-2026-104853. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.
Fix and advisories
- https://github.com/nrwl/nx/commit/38cd82a0c05e8212e538bdb87ccb198d6504e58f
- https://github.com/nrwl/nx/commit/95474ab457e8e1dbdbefad29040c166105a8fb90
- https://github.com/nrwl/nx/commit/de37c5ebd1852fac700d70726326236ac398af3f
- https://github.com/nrwl/nx/pull/36887
- https://github.com/nrwl/nx/releases/tag/22.7.10
- https://github.com/nrwl/nx/releases/tag/23.2.1
- https://github.com/nrwl/nx/security/advisories/GHSA-hrvq-x7jp-36xv
References
- https://github.com/nrwl/nx/commit/38cd82a0c05e8212e538bdb87ccb198d6504e58f
- https://github.com/nrwl/nx/commit/95474ab457e8e1dbdbefad29040c166105a8fb90
- https://github.com/nrwl/nx/commit/de37c5ebd1852fac700d70726326236ac398af3f
- https://github.com/nrwl/nx/pull/36887
- https://github.com/nrwl/nx/releases/tag/22.7.10
- https://github.com/nrwl/nx/releases/tag/23.2.1
- https://github.com/nrwl/nx/security/advisories/GHSA-hrvq-x7jp-36xv