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NVD / CVE Program· CNA GitHub_M

CVE-2026-33311: @dicebear/core and @dicebear/initials Vulnerable to SVG Injection via Unsanitized Options

MediumCVSS 4.7 · v3.1—No exploit Fix available

Noroxi assessment

Priority: Monitor (action score 18/100)

  • The sources we track (CISA KEV, Exploit-DB, Metasploit, Nuclei, GitHub) show no public exploit code or exploitation in the wild.
  • Probability of exploitation in the next 30 days: 0.19% (FIRST EPSS).
  • Anyone who can reach it over the internet can trigger it. No account or password is required. A user must open a link or visit a page. Special conditions such as timing or configuration are required.
  • Fixed version: @dicebear/core (npm) 5.4.4, 6.1.4, 7.1.4; @dicebear/initials (npm) 5.4.4, 6.1.4, 7.1.4.

Low priority for now. Upgrade to @dicebear/core (npm) 5.4.4, 6.1.4, 7.1.4; @dicebear/initials (npm) 5.4.4, 6.1.4, 7.1.4 or later.

Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it

Primary sources: NVD · CVE.org · FIRST EPSS

DiceBear is an avatar library for designers and developers. Starting in version 5.0.0 and prior to versions 5.4.4, 6.1.4, 7.1.4, 8.0.3, and 9.4.1, SVG attribute values derived from user-supplied options (`backgroundColor`, `fontFamily`, `textColor`) were not XML-escaped before interpolation into SVG output. This could allow Cross-Site Scripting (XSS) when applications pass untrusted input to `createAvatar()` and serve the resulting SVG inline or with `Content-Type: image/svg+xml`. Starting in versions 5.4.4, 6.1.4, 7.1.4, 8.0.3, and 9.4.1, all affected SVG attribute values are properly escaped using XML entity encoding. Users should upgrade to the listed patched versions. Some mitigating factors limit vulnerability. Applications that validate input against the library's JSON Schema before passing it to `createAvatar()` are not affected. The DiceBear CLI validates input via AJV and was not vulnerable. Exploitation requires that an application passes untrusted, unvalidated external input directly as option values.

Published
Mar 24, 2026
Updated
Jun 17, 2026
EPSS
0.1% · 8th percentile

Report tools

JSON

Action score

18

Monitor

Low priority for now.

CVSS
18 / 40 · 4.7 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.1%

CISA SSVC decision

Exploitation
none
Automatable
no
Technical impact
partial

Vulnrichment: CISA's decision-tree inputs.

CNA vs NVD score

NVD
—
CNA · GitHub_M
4.7
NVD has not scored this yet; the score shown is the CNA’s.

The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.

Get told when this record changes

  • Not in KEV: no record of exploitation in the wild
  • No public exploit code on record
  • A fix has been released

If any of these changes, we'll tell you in the daily email digest.

Follow CVE-2026-33311

When you'll hear from us

  • when it enters CISA KEV
  • when exploit code appears or is weaponized
  • when the record is updated (including a fixed version)
  • when EPSS rises 20 points in a week

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Noroxi analysis

What does it mean in your environment?

The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.

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Affected systems

Is your version affected?

Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.

VendorProduct
dicebeardicebear

Limit the impact of XSS

This is a cross-site scripting (XSS) vulnerability. A well-configured Content-Security-Policy doesn't fix it, but greatly reduces its impact. Check your site's CSP and other security headers for free.

Check security headers

Versions reported by the vendor

Affected version ranges reported by the assigning authority (GitHub_M). Independent of NVD's CPE analysis and usually ahead of it.

  • dicebear dicebear

    • >= 5.0.0, < 5.4.4, >= 6.0.0, < 6.1.4, >= 7.0.0, < 7.1.4, >= 8.0.0, < 8.0.3, >= 9.0.0, < 9.4.1affected
Affected versions · NVD (5)

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

  • dicebear dicebear5.0.0 and later · before 5.4.4
  • dicebear dicebear6.0.0 and later · before 6.1.4
  • dicebear dicebear7.0.0 and later · before 7.1.4
  • dicebear dicebear8.0.0 and later · before 8.0.3
  • dicebear dicebear9.0.0 and later · before 9.4.1

Package-level exposure

OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.

EcosystemPackageAffected rangeFix
npm@dicebear/corefrom 5.0.0 · before 5.4.45.4.4
npm@dicebear/corefrom 6.0.0 · before 6.1.46.1.4
npm@dicebear/corefrom 7.0.0 · before 7.1.47.1.4
npm@dicebear/corefrom 8.0.0 · before 8.0.38.0.3
npm@dicebear/corefrom 9.0.0 · before 9.4.19.4.1
npm@dicebear/initialsfrom 5.0.0 · before 5.4.45.4.4
npm@dicebear/initialsfrom 6.0.0 · before 6.1.46.1.4
npm@dicebear/initialsfrom 7.0.0 · before 7.1.47.1.4
npm@dicebear/initialsfrom 8.0.0 · before 8.0.38.0.3
npm@dicebear/initialsfrom 9.0.0 · before 9.4.19.4.1

Same product

dicebear: all records

Other highest-scoring records for the same primary product.

  • CVE-2026-33418@dicebear/converter ensureSize() Vulnerable to SVG Dimension Capping Bypass via XML Comment Injection
    30Monitor
  • CVE-2026-29112@dicebear/converter vulnerable to ncontrolled memory allocation via crafted SVG dimensions
    30Monitor
  • CVE-2026-68921DiceBear: SVG injection via the unescaped rotate option in @dicebear/core (and fontSize/fontWeight in @dicebear/initials)
    18Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

Product / packageFixed versionSource
npm:@dicebear/core5.4.4Package registry (OSV)
npm:@dicebear/core6.1.4Package registry (OSV)
npm:@dicebear/core7.1.4Package registry (OSV)
npm:@dicebear/core8.0.3Package registry (OSV)
npm:@dicebear/core9.4.1Package registry (OSV)
npm:@dicebear/initials5.4.4Package registry (OSV)
npm:@dicebear/initials6.1.4Package registry (OSV)
npm:@dicebear/initials7.1.4Package registry (OSV)
npm:@dicebear/initials8.0.3Package registry (OSV)
npm:@dicebear/initials9.4.1Package registry (OSV)

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

  • CVE-2026-68921149 days apartDiceBear: SVG injection via the unescaped rotate option in @dicebear/core (and fontSize/fontWeight in @dicebear/initials)
    18Monitor

Not on record for this CVE: EPSS history · patch commit or PR link · researcher credit · public bounty program.

Technical details

Attack conditions

  • Anyone who can reach it over the internet can trigger it.
  • No account or password is required.
  • A user must open a link or visit a page.
  • Special conditions such as timing or configuration are required.

If successful

Confidentiality
low · data can be read
Integrity
low · data or configuration can be modified
Availability
none

Impact can extend beyond the vulnerable component (scope changes).

Attack vector
Network
Attack complexity
High
Privileges required
None
User interaction
Required
Scope
Changed
Confidentiality impact
Low
Integrity impact
Low
Availability impact
None

Weakness class (CWE)

CWE-79 · Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

CVSS vector

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

nvd-secondary

Root cause

User content is inserted into the page as HTML. The browser interprets the content as code rather than data.

The bug in code

The whole CWE-79 class

A representative example of this vulnerability class. Not the vendor's source code; it shows the faulty pattern and its fix.

Vulnerable

ts
commentEl.innerHTML = comment.body;

Fixed

ts
commentEl.textContent = comment.body;

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

ATT&CK techniques

—

References

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records