How severe is CVE-2026-44311?

CVE-2026-44311 has a CVSS 3.x base score of 5.4, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2026-44311 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (9th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-44311?

CVE-2026-44311 affects Fabricjs Fabric.js. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-44311?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2026-44311 have an EU (EUVD) identifier?

Yes. CVE-2026-44311 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-38399.

When was CVE-2026-44311 published?

CVE-2026-44311 was published on 2026-06-22 and last updated on 2026-06-26.

CVE-2026-44311

CVE-2026-44311 is a medium-severity vulnerability in Fabricjs Fabric.js with a CVSS 3.x base score of 5.4. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-79.

Key facts

Severity: Medium (CVSS 3.x base score 5.4)
EPSS exploit prediction: 0% (9th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-38399
Weakness: CWE-79
Affected product: Fabricjs Fabric.js
Published: 2026-06-22
Last modified: 2026-06-26

Description

Fabric.js is a Javascript HTML5 canvas library. Prior to 7.4.0, a potential Cross-Site Scripting (XSS) vulnerability exists in Fabric.js due to improper escaping of user-controlled input during SVG serialization via the toSVG() method. Specifically, the color field within the colorStops array of a fabric.Gradient object is not properly escaped when converted into SVG <stop> elements. If an application renders the generated SVG string into the DOM, this may allow an attacker to inject arbitrary HTML/SVG and execute JavaScript in the victim's browser. This vulnerability is fixed in 7.4.0.

Frequently asked questions

What is CVE-2026-44311?: Fabric.js is a Javascript HTML5 canvas library. Prior to 7.4.0, a potential Cross-Site Scripting (XSS) vulnerability exists in Fabric.js due to improper escaping of user-controlled input during SVG serialization via the toSVG() method. Specifically, the color field within the colorStops array of a fabric.Gradient object is not properly escaped when converted into SVG <stop> elements. If an application renders the generated SVG string into the DOM, this may allow an attacker to inject arbitrary HTML/SVG and execute JavaScript in the victim's browser. This vulnerability is fixed in 7.4.0.
How severe is CVE-2026-44311?: CVE-2026-44311 has a CVSS 3.x base score of 5.4, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2026-44311 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (9th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-44311?: CVE-2026-44311 affects Fabricjs Fabric.js. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-44311?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2026-44311 have an EU (EUVD) identifier?: Yes. CVE-2026-44311 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-38399.
When was CVE-2026-44311 published?: CVE-2026-44311 was published on 2026-06-22 and last updated on 2026-06-26.

References

Affected products (1)

cpe:2.3:a:fabricjs:fabric.js:*:*:*:*:*:node.js:*:*

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