CVE-2026-33809 — MEDIUM (5.3)

Q: What is CVE-2026-33809?

CVE-2026-33809 is a vulnerability with a CVSS score of 5.3 (MEDIUM). A maliciously crafted TIFF file can cause image decoding to attempt to allocate up 4GiB of memory, causing either excessive resource consumption or an out-of-memory error.

Q: How severe is CVE-2026-33809?

CVE-2026-33809 has been rated MEDIUM with a CVSS base score of 5.3/10. Review the CVSS metrics above for detailed severity breakdown.

Q: Is there a patch for CVE-2026-33809?

Check the references section above for vendor advisories and patch information. Affected products include: Golang Tiff.

Vulnerability Description

A maliciously crafted TIFF file can cause image decoding to attempt to allocate up 4GiB of memory, causing either excessive resource consumption or an out-of-memory error.

CVSS Score

5.3

MEDIUM

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

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

LOW

Integrity

NONE

Availability

NONE

Affected Products

Vendor	Product	Versions
Golang	Tiff	< 0.38.0

Related Weaknesses (CWE)

CWE-434

References

https://go.dev/cl/757660Mailing List
https://go.dev/issue/78267Issue Tracking
https://pkg.go.dev/vuln/GO-2026-4815Vendor Advisory

FAQ

What is CVE-2026-33809?

CVE-2026-33809 is a vulnerability with a CVSS score of 5.3 (MEDIUM). A maliciously crafted TIFF file can cause image decoding to attempt to allocate up 4GiB of memory, causing either excessive resource consumption or an out-of-memory error.

How severe is CVE-2026-33809?

CVE-2026-33809 has been rated MEDIUM with a CVSS base score of 5.3/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2026-33809?

Check the references section above for vendor advisories and patch information. Affected products include: Golang Tiff.