CVE-2025-71329: image-size 2.0.2 Denial of Service via Infinite Loop in JXL/HEIF Parser
Vulnerability summary
CVE-2025-71329 is a high (CVSS 8.7) Infinite Loop vulnerability in image-size. EPSS estimates a 0.43% chance of exploitation in the next 30 days, higher than 36.2% of scored vulnerabilities. 1 public exploit is recorded.
Timeline
- 10-06-2026PublishedVulnerability first disclosed.
- 14-07-2026Last modifiedVulnerability information updated.
Description
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 image buffer with a zero-valued size field in a recognized box-type. Attackers can trigger an infinite loop in the JXL or HEIF image parsers by providing a crafted image containing a box with a size of zero, causing the offset to never advance and permanently hanging the application.
CVSS metrics
8 scores · 5 sources · 2 versions- OSV · WolfiEcosystem advisory · calculated8.7HighCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
- OSV · NpmEcosystem advisory · calculated8.7HighCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
- OSV · ChainguardEcosystem advisory · calculated8.7HighCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
- NVDNIST8.7HighCVSS: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
- OSV · NpmEcosystem advisory · calculated7.5HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- NVDNIST7.5HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS trend
Probability
0.43%
Chance of exploitation in the next 30 days
Percentile
36%
Versus all other CVEs
30-day change
No change 0.00 pp
From 0.43% on 22-09-2026
Known exploited
Compare KEV catalogs
CISA KEVNot in the CISA KEV catalog.
ENISA CNWNot in the ENISA CNW catalog.
CIRCLNot in the CIRCL catalog.
Public exploits
1 foundExploit Reference (joshua.hu)
Maturity: unknown
Weaknesses
CWE · root causeAffected systems
Chainguard4 products
- langfuse-3-workerAll versions (No fix recorded)
- langfuse-4-worker< 4.46.0-r0
- langfuse-fips-3-workerAll versions (No fix recorded)
- langfuse-fips-4-worker< 4.45.4-r0
Image-size1 product
- image-size≥ 1.1.0, ≤ 1.2.1 | ≥ 2.0.0, ≤ 2.0.2
Npm1 product
- image-size≥ 1.2.0, < 2.0.3
Wolfi1 product
- langfuse-3-workerAll versions (No fix recorded)
4 vendors · 7 products
References
7 links- joshua.hu/image-size-infinite-loop-dos-vulnerabilitiesTechnical DescriptionExploitEVIDENCEWEBThird Party Advisory
- web.archive.org/web/20260224152152/https://github.com/image-size/image-size/pull/439Issue TrackingREPORTWEBPatch
- www.vulncheck.com/advisories/image-size-denial-of-service-via-infinite-loop-in-jxl-heif-parserThird Party AdvisoryAdvisoryWEB
