CVE-2025-71319: image-size · Infinite Loop
Affects image-sizeSource CVE Database V5
Public exploit available · CVSS 8.7 High.
Data as of 8 Nov 2026, 14:20 UTC
Sources agree
| CNA (VulnCheck) | CVSS 4.0 | 8.7 |
|---|---|---|
| CNA (VulnCheck) | CVSS 3.1 | 7.5 |
| ADP (redhat-SADP) | CVSS 3.1 | 7.5 |
- CISA SSVC
- Exploitation
- Proof of concept is public or traded
- Automatable
- Attackers can reliably automate steps 1–4 of the kill chain
- Technical impact
- Limited control over the software or limited information exposure
CISA SSVC assessment, 2026-06-10.
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:NExploitation evidence
t = 0 is the CVE’s publication on cve.org
Disclosed: evidence found.
CVE published 9 Jun 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: evidence found.
CISA SSVC: proof of concept public
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
Timeline
CVE ID reserved
by VulnCheck
, 23 hours before disclosure
CVE published
on cve.org
, t = 0
CISA SSVC assessment
proof of concept public
, 20 hours after disclosure
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), CISA SSVC, the Metasploit, Exploit-DB and nuclei-templates index as of 8 Nov 2026.
What to do
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| image-sizeimage-size | Affected
| Fixed in– |
npmimage-sizepkg:npm/image-sizeOther threats | Affected
| Fixed in– |
Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.
AI-suggested
Users should monitor vendor advisories for updates. Until a fix is released, mitigation options are limited. Red Hat customers with Technical Account Managers can seek direct guidance. Avoid processing untrusted image files with the vulnerable versions of image-size to reduce exposure.
Description
CVE-2025-71319 is a denial of service vulnerability in the image-size library versions 1.1.0 through 1.2.1 and 2.0.0 through 2.0.2. It occurs when processing specially crafted JXL, HEIF, or JP2 image files containing zero-sized boxes, causing an infinite loop in the findBox function. This infinite loop results in the Node.js event loop being permanently blocked, hanging the application and disrupting service availability.
References
- joshua.hu/image-size-infinite-loop-dos-vulnerabilities (opens in a new tab)
- web.archive.org/web/20260224152152/https://github.com/image-size/image-size/pull/439 (opens in a new tab)
- vulncheck.com/advisories/image-size-denial-of-service-via-infinite-loop-in-jxl-heif-parser (opens in a new tab)
- access.redhat.com/security/cve/CVE-2025-71319 (opens in a new tab)
- bugzilla.redhat.com/show_bug.cgi?id=2487296 (opens in a new tab)
- security.access.redhat.com/data/csaf/v2/vex/2025/cve-2025-71319.json (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:33313 (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:37272 (opens in a new tab)