5.5

CVE-2025-48888: deno Incorrect Authorization

CVSS: 5.5v4.0MediumAnalyzed
AliasesGHSA-xqxc-x6p3-w683
Published 04-06-2025Last modified 04-06-2025
Open JSON

Vulnerability summary

CVE-2025-48888 is a medium (CVSS 5.5) Incorrect Authorization vulnerability in deno. EPSS estimates a 0.41% chance of exploitation in the next 30 days, higher than 33.4% of scored vulnerabilities. 1 public exploit is recorded.

Overall risk
32/100
0100
Medium · default modelHow is this calculated?
CVSS score
5.5/10
010
Medium · v4.0 (CVE.org)
EPSS score
0.41%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits1github

Timeline

  1. 04-06-2025
    PublishedVulnerability first disclosed.
  2. 04-06-2025
    Last modifiedVulnerability information updated.

Description

Deno is a JavaScript, TypeScript, and WebAssembly runtime. Starting in version 1.41.3 and prior to versions 2.1.13, 2.2.13, and 2.3.2, `deno run --allow-read --deny-read main.ts` results in allowed, even though 'deny' should be stronger. The result is the same with all global unary permissions given as `--allow-* --deny-*`. This only affects a nonsensical combination of flags, so there shouldn't be a real impact on the userbase. Users may upgrade to version 2.1.13, 2.2.13, or 2.3.2 to receive a patch.

CVSS metrics

5 scores · 3 sources · 2 versions

EPSS trend

Probability

0.41%

Chance of exploitation in the next 30 days

Percentile

33%

Versus all other CVEs

30-day change

0.00 pp

From 0.41% on 20-09-2026

20-09-202620-10-2026
EPSS score
0.41%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

1 found
  • githubUnverified

    Deno

    Maturity: poc

Weaknesses

CWE · root cause

Affected systems

Crates.Io2 products
  • deno≥ 1.41.3, < 2.1.13 | ≥ 2.2.0, < 2.2.13 | ≥ 2.3.0, < 2.3.2
  • deno_runtime≥ 0.150.0, < 0.212.0
Deno1 product
  • deno≥ 1.41.3, < 2.1.13 | ≥ 2.2.0, < 2.2.13 | ≥ 2.3.0, < 2.3.2
Denoland1 product
  • deno≥ 1.41.3, < 2.1.13 | ≥ 2.2.0, < 2.2.13 | ≥ 2.3.0, < 2.3.2

3 vendors · 4 products

References

8 links