CVSS 4.0
7.7 highCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/E:PCVE-2025-24015
High (7.7) in deno deno. EPSS 0.3% chance of exploitation in the next 30 days. Fixed in deno 2.1.7.
Deno is a JavaScript, TypeScript, and WebAssembly runtime. Versions 1.46.0 through 2.1.6 have an issue that affects AES-256-GCM and AES-128-GCM in Deno in which the authentication tag is not being validated. This means tampered ciphertexts or incorrect keys might not be detected, which breaks the guarantees expected from AES-GCM. Older versions of Deno correctly threw errors in such cases, as does Node.js. Without authentication tag verification, AES-GCM degrades to essentially CTR mode, removing integrity protection. Authenticated data set with set_aad is also affected, as it is incorporated into the GCM hash (ghash) but this too is not validated, rendering AAD checks ineffective. Version 2.1.7 includes a patch that addresses this issue.
Severity
CVSS 3.1
5.3 mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N- EPSS
- 0.3% chance of exploitation in the next 30 days; higher than 21% of CVEs (scores of 2026-10-31)
- CWE
- CWE-347
- Published
- Modified
- Record from
- the NVD, synced
Affected
- deno:deno
Packages (OSV)
| Advisory | Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|---|
| GHSA-2x3r-hwv5-p32x | crates.io | deno | >=1.46.0 <2.1.7 | 2.1.7 |
| GHSA-2x3r-hwv5-p32x | crates.io | deno_node | >=0.102.0 <0.125.0 | 0.125.0 |
References
- https://github.com/denoland/deno/commit/0d1beed
- https://github.com/denoland/deno/commit/4f27d7cdc02e3edfb9d36275341fb8185d6e99ed
- https://github.com/denoland/deno/commit/a4003a5292bd0affefad3ecb24a8732886900f67
- https://github.com/denoland/deno/security/advisories/GHSA-2x3r-hwv5-p32x
- https://github.com/denoland/deno/security/advisories/GHSA-2x3r-hwv5-p32x