Distribution advisory
This page covers CVE-2024-33883 as tracked by npm (Root.io), for the package ejs. The fix is available in version 2.7.4-root.io.1; earlier versions remain affected.
How this vulnerability can be exploited
This issue can be reached with local access to the system, attack complexity is low, an attacker needs no privileges on the target. No user interaction is required. The scope is unchanged, so the impact stays within the vulnerable component. Rated impact: confidentiality none, integrity none, availability low. (rating taken from the base CVE record.)
CVSS metrics in full
The score comes from this vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
- Attack vector: Local — a local account, shell or session on the host is needed.
- Attack complexity: Low — the attack works reliably, with no preparation.
- Privileges required: None — an unauthenticated stranger can try it.
- User interaction: None — nobody has to be tricked into anything.
- Scope: Unchanged — the damage stays inside the vulnerable component.
- Confidentiality impact: None.
- Integrity impact: None.
- Availability impact: Low — limited, and the attacker does not choose what is affected.
Weakness class
ROOT-APP-NPM-CVE-2024-33883 is classified as CWE-1321: Prototype Pollution. Attacker input can modify an object prototype, changing behaviour for objects across the application.
Affected software
ROOT-APP-NPM-CVE-2024-33883 is recorded against 2 packages.
- @rootio/ejs (fixed in 2.7.4-root.io.1)
- ejs (fixed in 2.7.4-aikido.1)
Timeline and source
Published on 16 July 2026. No public exploit is currently recorded for this entry. Record sourced from OSV.
Other advisories for this package
@rootio/ejs has other advisories on record. If you are patching this one, these are worth checking on the same host:
Same weakness in other software
These advisories are the same class of weakness (CWE-1321: Prototype Pollution) in other software:
