PT-2026-28086 · Libtiff+1 · Libtiff+1

Published 2026-03-25 · Updated 2026-05-24 · CVE-2026-33809

Positive Technologies (AI Summary)

CVSS v3.1

5.3

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions LibTIFF (affected versions not specified)

Description A specially designed TIFF file can trigger an out-of-memory error or excessive resource usage during image decoding. The issue arises from the image decoding process attempting to allocate up to 4GiB of memory when processing a malicious IFD offset within the TIFF file.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Allocation of Resources Without Limits

Unrestricted File Upload

Weakness Enumeration

CWE-770

CWE-434

Related Identifiers

BDU:2026-07249

CVE-2026-33809

GHSA-44P7-9XX4-HF2G

GO-2026-4815

OPENSUSE-SU-2026:10628-1

OPENSUSE-SU-2026:10856-1

RHSA-2026:7291

RHSA-2026:7385

SUSE-SU-2026:1135-1

Affected Products

Libtiff

Red Os

References · 185

• https://osv.dev/vulnerability/openSUSE-SU-2026:10856-1 · Vendor Advisory
• https://osv.dev/vulnerability/GHSA-44p7-9xx4-hf2g · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2026-33809 · Security Note
• https://osv.dev/vulnerability/SUSE-SU-2026:1135-1 · Vendor Advisory
• https://osv.dev/vulnerability/openSUSE-SU-2026:10628-1 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-33809 · Security Note
• https://osv.dev/vulnerability/DEBIAN-CVE-2026-33809 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2026-33809 · Vendor Advisory
• https://pkg.go.dev/vuln/GO-2026-4815 · Vendor Advisory
• https://ubuntu.com/security/CVE-2026-33809 · Vendor Advisory
• https://bdu.fstec.ru/vul/2026-07249 · Security Note
• https://osv.dev/vulnerability/GO-2026-4815 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2026-33809 · Vendor Advisory
• https://github.com/golang/go/issues/78267 · Note
• https://suse.com/security/cve/CVE-2026-33529 · Note