NLnet Labs x-image-tiff up to 0.42.x TIFF Decoder memory allocation

CVSS Meta Temp Score
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CTI Interest Score
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3.4$0-$5k0.60

Summaryinfo

A vulnerability was found in NLnet Labs x-image-tiff up to 0.42.x and classified as problematic. This issue affects some unknown processing of the component TIFF Decoder. The manipulation results in memory allocation. This vulnerability is known as CVE-2026-46602. No exploit is available. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as problematic, was found in NLnet Labs x-image-tiff up to 0.42.x. Affected is an unknown code of the component TIFF Decoder. The manipulation with an unknown input leads to a memory allocation vulnerability. CWE is classifying the issue as CWE-789. The product allocates memory based on an untrusted, large size value, but it does not ensure that the size is within expected limits, allowing arbitrary amounts of memory to be allocated. This is going to have an impact on availability. CVE summarizes:

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.

This vulnerability is traded as CVE-2026-46602 since 05/15/2026. The technical details are unknown and an exploit is not available.

Upgrading to version 0.43.0 eliminates this vulnerability.

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Productinfo

Vendor

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 3.5
VulDB Meta Temp Score: 3.4

VulDB Base Score: 3.5
VulDB Temp Score: 3.4
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Memory allocation
CWE: CWE-789 / CWE-400 / CWE-404
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Partially

Availability: 🔒
Status: Not defined
Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: x-image-tiff 0.43.0

Timelineinfo

05/15/2026 CVE reserved
06/25/2026 +41 days VulDB entry created
06/26/2026 +0 days Advisory disclosed
06/26/2026 +0 days VulDB entry last update

Sourcesinfo

Status: Confirmed

CVE: CVE-2026-46602 (🔒)
GCVE (CVE): GCVE-0-2026-46602
GCVE (VulDB): GCVE-100-374070

Entryinfo

Created: 06/26/2026 01:24
Changes: 06/26/2026 01:24 (53)
Complete: 🔍
Cache ID: 216::103

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