SB20260529230 - openEuler 24.03 LTS SP1 update for curl

Description

This security bulletin contains information about 7 vulnerabilities.

1) Cleartext transmission of sensitive information (CVE-ID: CVE-2026-4873)

CWE-ID: CWE-319 - Cleartext Transmission of Sensitive Information

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Green

The vulnerability allows a remote attacker to gain access to sensitive information.

The vulnerability exists due to connection reuse ignores TLS requirement. A remote attacker can gain access to sensitive data.

2) Authentication Bypass by Primary Weakness (CVE-ID: CVE-2026-5545)

CWE-ID: CWE-305 - Authentication Bypass by Primary Weakness

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Green

The vulnerability allows a remote attacker to compromise the target system.

The vulnerability exists due to wrong reuse of HTTP Negotiate authentication connection. A remote attacker can execute arbitrary requests under the wrong user context.

3) Exposure of Data Element to Wrong Session (CVE-ID: CVE-2026-5773)

CWE-ID: CWE-488 - Exposure of Data Element to Wrong Session

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Green

The vulnerability allows a remote attacker to gain unauthorized access to otherwise restricted functionality.

The vulnerability exists due to improper reuse of connection for SMB(S) transfers. A remote attacker can gain access to sensitive information on the system.

4) Insufficiently protected credentials (CVE-ID: CVE-2026-6253)

CWE-ID: CWE-522 - Insufficiently Protected Credentials

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Green

The vulnerability allows a remote attacker to gain access to sensitive information on the system.

The vulnerability exists due to insufficiently protected credentials over redirect-to proxy. A remote attacker can gain access to sensitive information on the system.

5) Origin validation error (CVE-ID: CVE-2026-6276)

CWE-ID: CWE-346 - Origin Validation Error

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Green

The vulnerability allows a remote attacker to compromise the target system.

The vulnerability exists due to origin validation error within stale custom cookie host. A remote attacker can gain access to sensitive information on the system.

6) Information disclosure (CVE-ID: CVE-2026-6429)

CWE-ID: CWE-200 - Exposure of sensitive information to an unauthorized actor

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Green

The vulnerability allows a remote attacker to gain access to potentially sensitive information.

The vulnerability exists due to excessive data output by the application when reused proxy connection. A remote attacker can gain unauthorized access to sensitive information on the system.

7) Authentication Bypass by Capture-replay (CVE-ID: CVE-2026-7168)

CWE-ID: CWE-294 - Authentication Bypass by Capture-replay

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Green

The vulnerability allows a remote attacker to bypass authentication process.

The vulnerability exists due to authentication bypass by capture-replay. A remote attacker can leak and reuse Digest proxy authentication state across proxies to impersonate the client.

Remediation

Install update from vendor's website.

References

• https://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-SA-2026-2477