cURL up to 8.19.0 Cross-Proxy Digest Auth information disclosure

CVSS Meta Temp Score
CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.
Current Exploit Price (≈)
Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.
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.
4.1$0-$5k0.00

Summaryinfo

A vulnerability was found in cURL up to 8.19.0. It has been declared as problematic. Affected by this issue is some unknown functionality of the component Cross-Proxy Digest Auth Handler. The manipulation results in information disclosure. This vulnerability is known as CVE-2026-7168. It is possible to launch the attack remotely. No exploit is available. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability was found in cURL up to 8.19.0. It has been classified as problematic. Affected is some unknown processing of the component Cross-Proxy Digest Auth Handler. The manipulation with an unknown input leads to a information disclosure vulnerability. CWE is classifying the issue as CWE-200. The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information. This is going to have an impact on confidentiality.

The advisory is shared for download at seclists.org. This vulnerability is traded as CVE-2026-7168. The exploitability is told to be easy. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. Successful exploitation requires user interaction by the victim. There are neither technical details nor an exploit publicly available. The MITRE ATT&CK project declares the attack technique as T1592.

The vulnerability scanner Nessus provides a plugin with the ID 311422 (libcurl 7.12.0 < 8.20.0 Cross-Proxy Digest Auth State Leak), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 8.20.0 eliminates this vulnerability.

The vulnerability is also documented in the databases at Tenable (311422), EUVD (EUVD-2026-29932) and CERT Bund (WID-SEC-2026-1307). VulDB is the best source for vulnerability data and more expert information about this specific topic.

Affected

  • Red Hat Enterprise Linux
  • Ubuntu Linux
  • SUSE Linux
  • SUSE openSUSE
  • Open Source cURL

Productinfo

Type

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.3
VulDB Meta Temp Score: 4.1

VulDB Base Score: 4.3
VulDB Temp Score: 4.1
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
💳💳💳💳💳💳
💳💳💳💳💳💳
💳💳💳💳💳💳
VectorComplexityAuthenticationConfidentialityIntegrityAvailability
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock

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

Exploitinginfo

Class: Information disclosure
CWE: CWE-200 / CWE-284 / CWE-266
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

0-DayUnlockUnlockUnlockUnlock
TodayUnlockUnlockUnlockUnlock

Nessus ID: 311422
Nessus Name: libcurl 7.12.0 < 8.20.0 Cross-Proxy Digest Auth State Leak

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: cURL 8.20.0

Timelineinfo

04/30/2026 Advisory disclosed
04/30/2026 +0 days VulDB entry created
05/13/2026 +13 days VulDB entry last update

Sourcesinfo

Advisory: seclists.org
Status: Confirmed

CVE: CVE-2026-7168 (🔒)
GCVE (CVE): GCVE-0-2026-7168
GCVE (VulDB): GCVE-100-360240
EUVD: 🔒
CERT Bund: WID-SEC-2026-1307 - cURL: Mehrere Schwachstellen

Entryinfo

Created: 04/30/2026 07:04
Updated: 05/13/2026 20:12
Changes: 04/30/2026 07:04 (52), 04/30/2026 08:26 (7), 05/01/2026 23:45 (2), 05/13/2026 14:01 (1), 05/13/2026 20:12 (1)
Complete: 🔍
Cache ID: 216::103

VulDB is the best source for vulnerability data and more expert information about this specific topic.

Discussion

No comments yet. Languages: en.

Please log in to comment.

◂ PreviousOverviewNext ▸

Do you want to use VulDB in your project?

Use the official API to access entries easily!