CVE-2026-66032

Signals

NVD · CVE-2026-7726 · 6.5 · The Layouts for WPBakery plugin for WordPress is vulnerable to unauthorized actions due to a missing capability check on the `Layouts_WPB_Remote::template_sync(NVD · CVE-2026-7693 · 7.2 · The Backup Migration plugin for WordPress is vulnerable to OS Command Injection in all versions up to, and including, 2.1.5.1 due to insufficient sanitization oNVD · CVE-2026-7520 · 8.1 · The MailChimp Forms by MailMunch plugin for WordPress is vulnerable to unauthorized modification of data due to a missing capability check on the `sign_in()` anNVD · CVE-2026-7444 · 8.1 · The Search Analytics for WP plugin for WordPress is vulnerable to Cross-Site Request Forgery in all versions up to, and including, 1.4.16. This is due to missinCISA KEV · CVE-2026-18556 · 7.4 · N-able N-central Authentication Bypass Using an Alternate Path or Channel Vulnerability · Added 2026-08-04 · Due 2026-08-07CISA KEV · CVE-2026-34486 · 7.5 · Apache Tomcat Missing Encryption of Sensitive Data Vulnerability · Added 2026-08-04 · Due 2026-08-07NVD · CVE-2026-7726 · 6.5 · The Layouts for WPBakery plugin for WordPress is vulnerable to unauthorized actions due to a missing capability check on the `Layouts_WPB_Remote::template_sync(NVD · CVE-2026-7693 · 7.2 · The Backup Migration plugin for WordPress is vulnerable to OS Command Injection in all versions up to, and including, 2.1.5.1 due to insufficient sanitization oNVD · CVE-2026-7520 · 8.1 · The MailChimp Forms by MailMunch plugin for WordPress is vulnerable to unauthorized modification of data due to a missing capability check on the `sign_in()` anNVD · CVE-2026-7444 · 8.1 · The Search Analytics for WP plugin for WordPress is vulnerable to Cross-Site Request Forgery in all versions up to, and including, 1.4.16. This is due to missinCISA KEV · CVE-2026-18556 · 7.4 · N-able N-central Authentication Bypass Using an Alternate Path or Channel Vulnerability · Added 2026-08-04 · Due 2026-08-07CISA KEV · CVE-2026-34486 · 7.5 · Apache Tomcat Missing Encryption of Sensitive Data Vulnerability · Added 2026-08-04 · Due 2026-08-07

CVE Database · CVE-2026-66032

CVE-2026-66032

· HIGHUndergoing Analysis

CVSS v3.1

8.8

CVSS v4.0

8.7

EPSS

0.29%

Published

Jul 24, 2026

Modified

Jul 30, 2026

Public PoC / Exploit

All weaponized →

No public PoC or exploit code indexed for this CVE.

Links to public security research (Exploit-DB, Nuclei, Trickest, GitHub) for defensive use only.

Description

libssh2 through 1.11.1, fixed in commit 5e47761, contains a double-free vulnerability in the sftp_open() function in src/sftp.c that allows a malicious SSH server to corrupt the heap of any authenticated client opening an SFTP session. When a server responds to SSH_FXP_OPEN with SSH_FXP_STATUS containing FX_OK, the response data buffer is freed, and if a subsequent sftp_packet_require() call returns a specific error such as LIBSSH2_ERROR_CHANNEL_PACKET_EXCEEDED, the same pointer is freed a second time, enabling tcache dup conditions on glibc systems that allow overlapping allocations and function pointer overwrites.

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Weaknesses (CWE)

CWE-415

References (3)

https://github.com/libssh2/libssh2/commit/5e4776146552d898b9c0e1b313cd093fa8dc92d0

https://github.com/libssh2/libssh2/pull/2180

https://www.vulncheck.com/advisories/libssh2-double-free-heap-corruption-via-sftp-open

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