CVE-2026-33813: Parsing a WEBP image with an invalid, large size panics on 32-bit platforms.

Q: How do I fix CVE-2026-33813?

image: upgrade to 0.39.0. Exact commands for each OS are on this page.

Q: Is CVE-2026-33813 being exploited?

CVE-2026-33813 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-2026-33813 affect?

CVE-2026-33813 affects image. Severity is high (CVSS 7.5). Parsing a WEBP image with an invalid, large size panics on 32-bit platforms.

Q: How urgent is CVE-2026-33813?

Priority 38/100. High severity; Remotely exploitable, no login, no user action

Routine

HIGH 7.5REMOTEUPGRADE

CVE-2026-33813 is a high-severity flaw (CVSS 7.5) affecting image. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Parsing a WEBP image with an invalid, large size panics on 32-bit platforms.

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	0.3% (top 73%)
CISA exploited list	No
Published	2026-04-21
Last modified	2026-10-26

Publisher (CNA): Go Project · Vendor: golang

Last updated 2026-10-26 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-04-21 20:16 UTCPublished CVE record published
2026-10-26 21:10 UTCUpdated Record last modified

golang image UPGRADE

Affected: < 0.39.0

Fixed in: 0.39.0

Safe to downgrade to: no unaffected older release

1. Check installed version

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

2. UPGRADE to 0.39.0 (Debian / Ubuntu)

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

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade image

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-2026-33813?

image: upgrade to 0.39.0. Exact commands for each OS are on this page.

Is CVE-2026-33813 being exploited?

CVE-2026-33813 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-2026-33813 affect?

CVE-2026-33813 affects image. Severity is high (CVSS 7.5). Parsing a WEBP image with an invalid, large size panics on 32-bit platforms.

How urgent is CVE-2026-33813?

Priority 38/100. High severity; Remotely exploitable, no login, no user action

Software pages

Go (Golang) vulnerabilities

Related CVEs

CVE-2026-33812 MEDIUM 6.1 UPGRADE Parsing a malicious font file can cause excessive memory allocation.

References

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