CVE-2025-71319: Image-size denial of service (CVSS 7.5)

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 3.1 breakdown

Attack vectorNetwork

Attack complexityLow

Privileges requiredNone

User interactionNone

ScopeUnchanged

ConfidentialityNone

IntegrityNone

AvailabilityHigh

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected products

Image-size≥ 1.1.0 ≤ 1.2.1 · ≥ 2.0.0 ≤ 2.0.2

Redhat Discovery2.0

Redhat Gatekeeper3.0

Redhat Trusted Artifact Signer≥ 1.4 < 1.4.2

Redhat Enterprise Linux8.0

Remediation

Fixed in

Redhat Trusted Artifact Signer≥ 1.4.2

Patch & vendor advisories

https://web.archive.org/web/20260224152152/https://github.com/image-size/image-size/pull/439

References

https://access.redhat.com/errata/RHSA-2026:33313Third Party Advisory
https://access.redhat.com/errata/RHSA-2026:37272Third Party Advisory
https://access.redhat.com/security/cve/CVE-2025-71319Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2487296Issue TrackingThird Party Advisory
https://joshua.hu/image-size-infinite-loop-dos-vulnerabilitiesExploitThird Party Advisory
https://security.access.redhat.com/data/csaf/v2/vex/2025/cve-2025-71319.jsonThird Party Advisory
https://web.archive.org/web/20260224152152/https://github.com/image-size/image-size/pull/439Issue TrackingPatch
https://www.vulncheck.com/advisories/image-size-denial-of-service-via-infinite-loop-in-jxl-heif-parserThird Party Advisory

Related CVEs

Recent high-severity vulnerabilities sharing a weakness type.

Frequently asked

Is CVE-2025-71319 being actively exploited?

CVE-2025-71319 is not in the CISA KEV catalog. A public exploit reference exists, so treat it as exploitable. Its EPSS exploit probability is 0.73%.

How severe is CVE-2025-71319?

CVE-2025-71319 has a CVSS 3.1 base score of 7.5, rated high. EPSS estimates a 0.73% probability of exploitation.

Which products are affected by CVE-2025-71319?

Affected products include Image-size, Redhat Discovery, Redhat Gatekeeper, Redhat Trusted Artifact Signer, Redhat Enterprise Linux.

How do I fix CVE-2025-71319?

Upgrade affected software to a fixed version, for example Redhat Trusted Artifact Signer 1.4.2 or later, then confirm no affected versions remain in your inventory.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2025-71319 against the real software inventory on every managed device, every day. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

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