CVE-2024-29041
What it is
Express.js minimalist web framework for node. Versions of Express.js prior to 4.19.0 and all pre-release alpha and beta versions of 5.0 are affected by an open redirect vulnerability using malformed URLs. When a user of Express performs a redirect using a user-provided URL Express performs an encode [using `encodeurl`](https://github.com/pillarjs/encodeurl) on the contents before passing it to the `location` header. This can cause malformed URLs to be evaluated in unexpected ways by common redirect allow list implementations in Express applications, leading to an Open Redirect via bypass of a properly implemented allow list. The main method impacted is `res.location()` but this is also called from within `res.redirect()`. The vulnerability is fixed in 4.19.2 and 5.0.0-beta.3.
At a glance
- Exploitability
- Can be exploited over the network without logging in, but needs a user to act. Limited direct impact.
- Exploit odds
- 0.8% 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: 0.8% in the next 30 days (EPSS).
- Severity: 6.1 MEDIUM (CVSS).
- Fix: a patch or advisory is linked.
Details
- Published
- Last modified
- Exploit probability
- 0.8% · EPSS, next 30 days
- Weakness
- CWE-601
- Record status
- Analyzed
Affected
- Openjsf Express < 4.19.2
- Openjsf Express 5.0.0
Attack profile CVSS 3.1 · 6.1
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- Required
- Scope
- Changed
- Confidentiality
- Low
- Integrity
- Low
- Availability
- None
Raw vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
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-2024-29041.md and follow it. Check whether this project is affected by CVE-2024-29041. 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/expressjs/express/commit/0867302ddbde0e9463d0564fea5861feb708c2dd
- https://github.com/expressjs/express/commit/0b746953c4bd8e377123527db11f9cd866e39f94
- https://github.com/expressjs/express/pull/5539
- https://github.com/expressjs/express/security/advisories/GHSA-rv95-896h-c2vc
- https://github.com/expressjs/express/commit/0867302ddbde0e9463d0564fea5861feb708c2dd
- https://github.com/expressjs/express/commit/0b746953c4bd8e377123527db11f9cd866e39f94
- https://github.com/expressjs/express/pull/5539
- https://github.com/expressjs/express/security/advisories/GHSA-rv95-896h-c2vc
References
- https://expressjs.com/en/4x/api.html#res.location
- https://github.com/expressjs/express/commit/0867302ddbde0e9463d0564fea5861feb708c2dd
- https://github.com/expressjs/express/commit/0b746953c4bd8e377123527db11f9cd866e39f94
- https://github.com/expressjs/express/pull/5539
- https://github.com/expressjs/express/security/advisories/GHSA-rv95-896h-c2vc
- https://github.com/koajs/koa/issues/1800
- https://expressjs.com/en/4x/api.html#res.location
- https://github.com/expressjs/express/commit/0867302ddbde0e9463d0564fea5861feb708c2dd
- https://github.com/expressjs/express/commit/0b746953c4bd8e377123527db11f9cd866e39f94
- https://github.com/expressjs/express/pull/5539
- https://github.com/expressjs/express/security/advisories/GHSA-rv95-896h-c2vc
- https://github.com/koajs/koa/issues/1800