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Fencer Intel
high 7.5

CVE-2025-71330 json

image-size 2.0.2 Denial of Service via Malformed ICNS Image Parsing

published 4mo ago modified yesterday also EUVD-2025-210105 , GHSA-w3rx-r6r6-pgpr

cvss
7.5
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.4%
EPSS 0.4% chance of exploitation in 30 days, percentile 37%
public exploits
0
none known

Summary

image-size through 2.0.2 contains a denial of service vulnerability that allows remote attackers to permanently block the Node.js event loop by supplying a specially crafted ICNS image buffer. Attackers can craft an ICNS buffer containing valid magic bytes and a zero-valued entry length field to trigger an infinite loop in the ICNS parser, as the offset is never incremented when the entry length field is 0, causing the while loop condition to remain true indefinitely.

Patch / fix

  • npm image-size 2.0.3

Is CVE-2025-71330 in your dependencies? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.

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Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2025-71330 updated cvss 6.5

image-size: image-size: Denial of Service via crafted ICNS image buffer

  • Red Hat Gatekeeper 3 gatekeeper/gatekeeper-rhel9 Red Hat Build of Podman Desktop rh-podman-desktop.git Red Hat Discovery 2 discovery/discovery-ui-rhel9 Red Hat Enterprise Linux 8 grafana, grafana-pcp, grafana-loki, grafana-mssql, grafana-mysql, grafana-selinux, +9 more Red Hat Fuse 7 image-size Red Hat JBoss Enterprise Application Platform 7 image-size
    +5 more products
    Red Hat JBoss Enterprise Application Platform 8 image-size Red Hat JBoss Enterprise Application Platform Expansion Pack image-size Red Hat OpenShift Dev Spaces devspaces/code-rhel9 Red Hat Satellite 6 satellite/iop-vulnerability-frontend-rhel9 Red Hat Trusted Artifact Signer rhtas/rekor-search-ui-rhel9
    affected: workaround, no fix available “Upgrade to a version of image-size that validates ICNS entry length fields. As a workaround, validate image inputs before passing them to image-size, rejecting ICNS files with zero-length entries.”
  • Red Hat OpenShift AI 3.4 rhoai/odh-workbench-codeserver-datascience-cpu-py312-rhel9 1787121387
    fixed: vendor fix “Upgrade to a version of image-size that validates ICNS entry length fields. As a workaround, validate image inputs before passing them to image-size, rejecting ICNS files with zero-length entries.” RHSA-2026:60520
  • Red Hat OpenShift AI 3.4 rhoai/odh-cli-rhel9 1787330837, rhoai/rhai-cli-rhel9 1787330837, rhoai/odh-automl-rhel9 1786612415, rhoai/odh-mlflow-rhel9 1787226790, rhoai/odh-autorag-rhel9 1786612637, rhoai/odh-trainer-rhel9 1787089049, +99 more
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

CISA SSVC

Exploitation
Proof of concept is public
Automatable
yes
Technical impact
partial
Assessed
4mo ago

Exploit prediction

0.43% chance of exploitation in the next 30 days, higher than 37% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

  • joshua.hu https://joshua.hu/image-size-infinite-loop-dos-vulnerabilities referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
CNA 4.0 8.7 CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
CNA 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
GitHub 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CNA 4.0 8.7 CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Affected packages

ecosystem package affected fixed in
npm image-size
>=0.6.3, <2.0.3
2.0.3

Affected products

  • image-size image-size

Classification

Weakness
  • CWE-835 Loop with Unreachable Exit Condition

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.