Apache Traffic Server up to 9.1.14/10.1.3 access control

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
9.5$5k-$25k4.43

Summaryinfo

A vulnerability was found in Apache Traffic Server up to 9.1.14/10.1.3. It has been rated as very critical. The impacted element is an unknown function. The manipulation leads to access control. This vulnerability is listed as CVE-2026-41920. The attack may be initiated remotely. There is no available exploit.

Detailsinfo

A vulnerability was found in Apache Traffic Server up to 9.1.14/10.1.3. It has been rated as very critical. This issue affects an unknown function. The manipulation with an unknown input leads to a access control vulnerability. Using CWE to declare the problem leads to CWE-284. The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

Improper Access Control vulnerability in Apache Traffic Server. This issue affects Apache Traffic Server: from 9.0.0 through 9.1.14, from 10.0.0 through 10.1.3. Users are recommended to upgrade to version 9.1.15 or 10.1.4, which fixes the issue.

It is possible to read the advisory at lists.apache.org. The identification of this vulnerability is CVE-2026-41920 since 04/22/2026. The exploitation is known to be easy. The attack may be initiated remotely. The technical details are unknown and an exploit is not publicly available. The pricing for an exploit might be around USD $5k-$25k at the moment (estimation calculated on 07/29/2026). The attack technique deployed by this issue is T1068 according to MITRE ATT&CK.

Upgrading to version 9.1.15 or 10.1.4 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2026-50167). Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 9.9
VulDB Meta Temp Score: 9.5

VulDB Base Score: 9.9
VulDB Temp Score: 9.5
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: Access control
CWE: CWE-284 / CWE-266
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

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: Traffic Server 9.1.15/10.1.4

Timelineinfo

04/22/2026 CVE reserved
07/29/2026 +98 days Advisory disclosed
07/29/2026 +0 days VulDB entry created
07/29/2026 +0 days VulDB entry last update

Sourcesinfo

Vendor: apache.org

Advisory: lists.apache.org
Status: Confirmed

CVE: CVE-2026-41920 (🔒)
GCVE (CVE): GCVE-0-2026-41920
GCVE (VulDB): GCVE-100-384083
EUVD: 🔒

Entryinfo

Created: 07/29/2026 09:50
Updated: 07/29/2026 12:58
Changes: 07/29/2026 09:50 (53), 07/29/2026 12:58 (1)
Complete: 🔍
Cache ID: 216::103

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

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