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VulnerabilityPublished

CVE-2026-46602: golang.org/x/image/tiff · Excessive Memory Allocation

Affects golang.org/x/image/tiffSource CVE Database V5

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Not known to be exploited · CVSS 7.5 High : upgrade to 0.43.0 soon.

Data as of 6 Nov 2026, 23:24 UTC

CVSS 3.1 base score
7.5High
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.6% chance of exploitation in 30 days – higher than 49% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch
Available – fixed in 0.43.0
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 25 Jun 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 6 Nov 2026.

What to do

Upgrade golang.org/x/image/tiff to 0.43.0.

Affected software

ProductAffectedFixed in
golang.org/x/imagegolang.org/x/image/tiffAffected
  • <0.43.0
Fixed in
  • 0.43.0
Gogolang.org/x/image/tiffpkg:golang/golang.org/x/image/tiffOther threatsAffected
  • <0.43.0
Fixed in
  • 0.43.0

Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.

AI-suggested

If you cannot patch yet, users should avoid processing untrusted or potentially malicious TIFF images with tiled data using affected versions of golang.org/x/image/tiff.

Description

The TIFF decoder does not set a limit on the size of tiles in tiled images, permitting a malicious or corrupt image containing a very large tile to cause unbounded memory consumption.

References

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