CVE-2023-28445
Deno improperly handles resizable ArrayBuffer
- Published
- Updated
- Reserved
- Assigned by
- GitHub_M
Description
Deno is a runtime for JavaScript and TypeScript that uses V8 and is built in Rust. Resizable ArrayBuffers passed to asynchronous functions that are shrunk during the asynchronous operation could result in an out-of-bound read/write. It is unlikely that this has been exploited in the wild, as the only version affected is Deno 1.32.0. Deno Deploy users are not affected. The problem has been resolved by disabling resizable ArrayBuffers temporarily in Deno 1.32.1. Deno 1.32.2 will re-enable resizable ArrayBuffers with a proper fix. As a workaround, run with `--v8-flags=--no-harmony-rab-gsab` to disable resizable ArrayBuffers.
Timeline
ID reserved
By GitHub_M
- 8 days later
· 8 days later
Published
- 23 months later
· 23 months later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| GitHub_MCNA (assigner) | 3.1 | Critical10.0 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H |
| NVDNVD · Modified | 3.1 | Critical9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
- EPSS (exploitation in 30 days)
- 0.97% · top 38% of all CVEs (8 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: no · Technical impact: total
The list uses the assigner's score when there is one, then CISA's, then NVD's: Critical 10.0.
Weakness
Affected products
Affected packages
From reviewed advisories of the GitHub Advisory Database.
- crates.ioDenoGHSA-c25x-cm9x-qqgx (opens in a new tab)
- crates.iodeno_runtimeGHSA-c25x-cm9x-qqgx (opens in a new tab)
- crates.ioserde_v8GHSA-c25x-cm9x-qqgx (opens in a new tab)
References (3)
- https://github.com/denoland/deno/security/advisories/GHSA-c25x-cm9x-qqgx (opens in a new tab)x_refsource_CONFIRMx_transferred
- https://github.com/denoland/deno/pull/18395 (opens in a new tab)x_refsource_MISCx_transferred
- https://github.com/denoland/deno/releases/tag/v1.32.1 (opens in a new tab)x_refsource_MISCx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisory GHSA-c25x-cm9x-qqgx (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2023-28445)Record last updated .