4.3

CVE-2025-55173: vercel next.js Improper Input Validation

CVSS: 4.3v3.1MediumAnalyzed
AliasesCGA-g95q-3279-vr9xCGA-qpxv-hcmm-8946CGA-r4v4-8525-p29p
Published 29-08-2025Last modified 02-09-2025
Open JSON

Vulnerability summary

CVE-2025-55173 is a medium (CVSS 4.3) Improper Input Validation vulnerability in vercel next.js. EPSS estimates a 0.60% chance of exploitation in the next 30 days, higher than 47.6% of scored vulnerabilities.

Overall risk
17/100
0100
Low · default modelHow is this calculated?
CVSS score
4.3/10
010
Medium · v3.1 (CVE.org)
EPSS score
0.60%
0%100%
Low · +0.05 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 0 · Related 1
CGA-FF6X-F9MF-5Q64

Timeline

  1. 29-08-2025
    PublishedVulnerability first disclosed.
  2. 02-09-2025
    Last modifiedVulnerability information updated.

Description

Next.js is a React framework for building full-stack web applications. In versions before 14.2.31 and from 15.0.0 to before 15.4.5, Next.js Image Optimization is vulnerable to content injection. The issue allowed attacker-controlled external image sources to trigger file downloads with arbitrary content and filenames under specific configurations. This behavior could be abused for phishing or malicious file delivery. This vulnerability has been fixed in Next.js versions 14.2.31 and 15.4.5.

CVSS metrics

5 scores · 5 sources · 1 version

EPSS trend

Probability

0.60%

Chance of exploitation in the next 30 days

Percentile

48%

Versus all other CVEs

30-day change

+0.05 pp

From 0.55% on 19-09-2026

19-09-202619-10-2026
EPSS score
0.60%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Chainguard3 products
  • jitsucom-jitsu< 2.11.0-r1
  • jitsucom-jitsu-console< 2.11.0-r1
  • jitsucom-jitsu-rotor< 2.11.0-r1
Wolfi3 products
  • jitsucom-jitsu< 2.11.0-r1
  • jitsucom-jitsu-console< 2.11.0-r1
  • jitsucom-jitsu-rotor< 2.11.0-r1
Npm1 product
  • next≥ 0.9.9, < 14.2.31 | ≥ 15.0.0, < 15.4.5
Vercel1 product
  • next.js< 14.2.31 | ≥ 15.0.0, < 15.4.5

4 vendors · 8 products

References

7 links