iTerm2 up to 3.6.9 File inclusion of functionality from untrusted control sphere

CVSS Meta Temp Score
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CTI Interest Score
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6.3$0-$5k0.00

Summaryinfo

A vulnerability categorized as problematic has been discovered in iTerm2 up to 3.6.9. Affected is an unknown function of the component File Handler. The manipulation results in inclusion of functionality from untrusted control sphere. This vulnerability is known as CVE-2026-41253. Attacking locally is a requirement. No exploit is available. A patch should be applied to remediate this issue.

Detailsinfo

A vulnerability was found in iTerm2 up to 3.6.9. It has been classified as problematic. Affected is an unknown functionality of the component File Handler. The manipulation with an unknown input leads to a inclusion of functionality from untrusted control sphere vulnerability. CWE is classifying the issue as CWE-829. The product imports, requires, or includes executable functionality (such as a library) from a source that is outside of the intended control sphere. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

In iTerm2 through 3.6.9, displaying a .txt file can cause code execution via DCS 2000p and OSC 135 data, if the working directory contains a malicious file whose name is valid output from the conductor encoding path, such as a pathname with an initial ace/c+ substring, aka "hypothetical in-band signaling abuse." This occurs because iTerm2 accepts the SSH conductor protocol from terminal output that does not originate from a legitimate conductor session.

The advisory is available at iterm2.com. This vulnerability is traded as CVE-2026-41253 since 04/18/2026. The exploitability is told to be difficult. Local access is required to approach this attack. The technical details are unknown and an exploit is not available.

The vulnerability scanner Nessus provides a plugin with the ID 307903 (iTerm2 < 3.6.10 / < 3.7.0beta1 Arbitrary Code Execution (CVE-2026-41253)), which helps to determine the existence of the flaw in a target environment.

Applying the patch a9e745993c2e2cbb30b884a16617cd5495899f86 is able to eliminate this problem. The bugfix is ready for download at github.com.

The vulnerability is also documented in the databases at Tenable (307903) and EUVD (EUVD-2026-23656). If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

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Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.4
VulDB Meta Temp Score: 6.3

VulDB Base Score: 4.5
VulDB Temp Score: 4.3
VulDB Vector: 🔒
VulDB Reliability: 🔍

NVD Base Score: 7.8
NVD Vector: 🔒

CNA Base Score: 6.9
CNA Vector (MITRE): 🔒

CVSSv2info

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

Exploitinginfo

Class: Inclusion of functionality from untrusted control sphere
CWE: CWE-829
CAPEC: 🔒
ATT&CK: 🔒

Physical: Partially
Local: Yes
Remote: Partially

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Nessus ID: 307903
Nessus Name: iTerm2 < 3.6.10 / < 3.7.0beta1 Arbitrary Code Execution (CVE-2026-41253)

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Patch
Status: 🔍

0-Day Time: 🔒

Patch: a9e745993c2e2cbb30b884a16617cd5495899f86

Timelineinfo

04/18/2026 Advisory disclosed
04/18/2026 +0 days CVE reserved
04/18/2026 +0 days VulDB entry created
05/18/2026 +30 days VulDB entry last update

Sourcesinfo

Advisory: iterm2.com
Status: Confirmed

CVE: CVE-2026-41253 (🔒)
GCVE (CVE): GCVE-0-2026-41253
GCVE (VulDB): GCVE-100-358170
EUVD: 🔒

Entryinfo

Created: 04/18/2026 09:03
Updated: 05/18/2026 20:16
Changes: 04/18/2026 09:03 (63), 04/18/2026 12:04 (1), 04/21/2026 20:03 (2), 05/18/2026 20:16 (11)
Complete: 🔍
Cache ID: 216::103

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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