CVE-2026-33418: DiceBear is an avatar library for designers and developers

Q: How do I fix CVE-2026-33418?

dicebear: upgrade to 9.4.2. Exact commands for each OS are on this page.

Q: Is CVE-2026-33418 being exploited?

CVE-2026-33418 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2026-33418 affect?

CVE-2026-33418 affects dicebear. Severity is high (CVSS 7.5). DiceBear is an avatar library for designers and developers. Prior to version 9.4.2, the `ensureSize()` function in `@dicebear/converter` used a regex-based approach to rewrite SVG `width`/`height` attributes, capping them at 2048px to preve

Q: How urgent is CVE-2026-33418?

Priority 39/100. High severity; Remotely exploitable, no login, no user action

Routine

HIGH 7.5REMOTEUPGRADE

CVE-2026-33418 is a high-severity flaw (CVSS 7.5) affecting dicebear. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

DiceBear is an avatar library for designers and developers. Prior to version 9.4.2, the `ensureSize()` function in `@dicebear/converter` used a regex-based approach to rewrite SVG `width`/`height` attributes, capping them at 2048px to prevent denial of service. This size capping could be bypassed by crafting SVG input that causes the regex to match a non-functional occurrence of `<svg` before the actual SVG root element. When the SVG is subsequen

Why this priority

High severity
Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	7.5 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	0.4% (top 68%)
CISA exploited list	No
Weakness	CWE-185
Published	2026-03-24
Last modified	2026-06-17

Publisher (CNA): GitHub, Inc. · Vendor: dicebear

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-03-24 14:16 UTCPublished CVE record published
2026-06-17 10:37 UTCUpdated Record last modified

dicebear dicebear UPGRADE

Affected: < 9.4.2

Fixed in: 9.4.2

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy dicebear || rpm -q dicebear || dicebear --version

2. UPGRADE to 9.4.2 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade dicebear

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade dicebear

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2026-33418?

dicebear: upgrade to 9.4.2. Exact commands for each OS are on this page.

Is CVE-2026-33418 being exploited?

CVE-2026-33418 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2026-33418 affect?

CVE-2026-33418 affects dicebear. Severity is high (CVSS 7.5). DiceBear is an avatar library for designers and developers. Prior to version 9.4.2, the `ensureSize()` function in `@dicebear/converter` used a regex-based approach to rewrite SVG `width`/`height` attributes, capping them at 2048px to preve

How urgent is CVE-2026-33418?

Priority 39/100. High severity; Remotely exploitable, no login, no user action

Related CVEs

CVE-2026-33311 MEDIUM 4.7 UPGRADE DiceBear is an avatar library for designers and developers
CVE-2026-29112 HIGH 7.5 UPGRADE DiceBear is an avatar library for designers and developers

References

← Back to latest CVEs