CVE-2026-33311: DiceBear is an avatar library for designers and developers

Routine

MEDIUM 4.7UPGRADE

CVE-2026-33311 is a medium-severity flaw (CVSS 4.7) 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. 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

Why this priority

No elevated risk signals yet

A fixed release or distro patch exists.

Risk facts

CVSS score	4.7 (Medium)
Attack vector	Network (remote)
Attack complexity	High
Privileges needed	None
User interaction	Required
EPSS exploit chance	0.2% (top 92%)
CISA exploited list	No
Weakness	CWE-79
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: >= 5.0.0 and < 5.4.4 · >= 6.0.0 and < 6.1.4 · >= 7.0.0 and < 7.1.4 · >= 8.0.0 and < 8.0.3 · >= 9.0.0 and < 9.4.1

Fixed in: 5.4.4, 6.1.4, 7.1.4, 8.0.3, 9.4.1

Safe to downgrade to: a release before 5.0.0

1. Check installed version

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

2. UPGRADE to 5.4.4 (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.

3. If no update is available yet, DOWNGRADE to a release before 5.0.0 (Debian / Ubuntu)

apt-cache madison dicebear sudo apt install dicebear=<VERSION_BEFORE_5.0.0> sudo apt-mark hold dicebear

3. If no update is available yet, DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list dicebear sudo dnf downgrade dicebear-<VERSION_BEFORE_5.0.0> sudo dnf versionlock add dicebear

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

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-2026-33311?

dicebear: upgrade to 5.4.4, 6.1.4, 7.1.4, 8.0.3, 9.4.1. Exact commands for each OS are on this page.

Is CVE-2026-33311 being exploited?

CVE-2026-33311 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-2026-33311 affect?

CVE-2026-33311 affects dicebear. Severity is medium (CVSS 4.7). 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`, `te

How urgent is CVE-2026-33311?

Priority 19/100. No elevated risk signals yet.

Related CVEs

CVE-2026-33418 HIGH 7.5 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

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