libssh2 | Snyk

Direct Vulnerabilities

Known vulnerabilities in the libssh2 package. This does not include vulnerabilities belonging to this package’s dependencies.

Fix vulnerabilities automatically

Snyk's AI Trust Platform automatically finds the best upgrade path and integrates with your development workflows. Secure your code at zero cost.

Fix for free

Vulnerability	Vulnerable Version
M CVE-2026-66032	*
M Out-of-bounds Read	*
M Out-of-bounds Read	*
H Buffer Overflow	*
M Uncontrolled Memory Allocation	*
M Access of Uninitialized Pointer	*
M Out-of-bounds Write	*
M Out-of-bounds Read	*
M Unchecked Input for Loop Condition	*
H Integer Overflow or Wraparound	*
M Out-of-bounds Read	*
L Memory Leak	*
M Return of Wrong Status Code	*
M Double Free	*
M Incorrect Calculation	*
L Use After Free	*
M Out-of-bounds Read	<0:1.8.0-4.el7_9.1
M Incorrect Type Conversion or Cast	<0:1.4.3-10.el7_2.1
L Improper Handling of Length Parameter Inconsistency	<0:1.4.3-10.el7
M Integer Overflow or Wraparound	<0:1.8.0-4.el7
M Out-of-bounds Read	<0:1.8.0-3.el7
M Out-of-bounds Read	<0:1.8.0-3.el7
M Improper Handling of Length Parameter Inconsistency	<0:1.4.3-12.el7_6.3
H Out-of-bounds Write	<0:1.4.3-12.el7_6.2
H Out-of-bounds Write	<0:1.4.3-12.el7_6.2
H Out-of-bounds Write	<0:1.4.3-12.el7_6.2
H Out-of-bounds Write	<0:1.4.3-12.el7_6.2
L Unchecked Return Value	*
M Truncation of Security-relevant Information	*
M Out-of-bounds Read	<0:1.8.0-4.el7_9.1
M Improper Authentication	*
M Improper Authentication	*
M Incorrect Type Conversion or Cast	<0:1.4.3-10.el7_2.1
M Incorrect Type Conversion or Cast	<0:1.4.3-10.el7_2.1
M Incorrect Type Conversion or Cast	<0:1.4.3-10.el7_2.1
M Incorrect Type Conversion or Cast	<0:1.4.3-10.el7_2.1
M Incorrect Type Conversion or Cast	<0:1.4.3-10.el7_2.1
M Incorrect Type Conversion or Cast	<0:1.4.3-10.el7_2.1
M Incorrect Type Conversion or Cast	<0:1.4.3-10.el7_2.1
M Incorrect Type Conversion or Cast	<0:1.4.3-10.el7_2.1
M Incorrect Type Conversion or Cast	<0:1.4.3-10.el7_2.1
M Incorrect Type Conversion or Cast	<0:1.4.3-10.el7_2.1
M Incorrect Type Conversion or Cast	<0:1.4.3-10.el7_2.1
M Incorrect Type Conversion or Cast	<0:1.4.3-10.el7_2.1
M Incorrect Type Conversion or Cast	<0:1.4.3-10.el7_2.1
M Incorrect Type Conversion or Cast	<0:1.4.3-10.el7_2.1
M Incorrect Type Conversion or Cast	<0:1.4.3-10.el7_2.1
M Incorrect Type Conversion or Cast	<0:1.4.3-10.el7_2.1
M Incorrect Type Conversion or Cast	<0:1.4.3-10.el7_2.1
M Incorrect Type Conversion or Cast	<0:1.4.3-10.el7_2.1
M Incorrect Type Conversion or Cast	<0:1.4.3-10.el7_2.1
M Incorrect Type Conversion or Cast	<0:1.4.3-10.el7_2.1
M Incorrect Type Conversion or Cast	<0:1.4.3-10.el7_2.1
M Incorrect Type Conversion or Cast	<0:1.4.3-10.el7_2.1
H Out-of-bounds Write	<0:1.4.3-12.el7_6.2
H Out-of-bounds Write	<0:1.4.3-12.el7_6.2
H Out-of-bounds Write	<0:1.4.3-12.el7_6.2
H Out-of-bounds Write	<0:1.4.3-11.el7_4.1
H Out-of-bounds Write	<0:1.4.3-11.el7_3.1
H Out-of-bounds Write	<0:1.4.3-11.el7_3.1
H Out-of-bounds Write	<0:1.4.3-12.el7_6.2
H Out-of-bounds Write	<0:1.4.3-11.el7_4.1
H Out-of-bounds Write	<0:1.4.3-12.el7_6.2
H Out-of-bounds Write	<0:1.4.3-12.el7_6.2
H Out-of-bounds Write	<0:1.4.3-12.el7_6.2
H Out-of-bounds Write	<0:1.4.3-11.el7_4.1
H Out-of-bounds Write	<0:1.4.3-12.el7_6.2
H Out-of-bounds Write	<0:1.4.3-12.el7_6.2
H Out-of-bounds Write	<0:1.4.3-11.el7_3.1
H Out-of-bounds Write	<0:1.4.3-11.el7_4.1
H Out-of-bounds Write	<0:1.4.3-11.el7_5.1
H Out-of-bounds Write	<0:1.4.3-12.el7_6.2
H Out-of-bounds Write	<0:1.4.3-12.el7_6.2
H Out-of-bounds Write	<0:1.4.3-12.el7_6.2
H Out-of-bounds Write	<0:1.4.3-12.el7_6.2
H Out-of-bounds Write	<0:1.4.3-11.el7_4.1
H Out-of-bounds Write	<0:1.4.3-12.el7_6.2
H Out-of-bounds Write	<0:1.4.3-11.el7_3.1
H Out-of-bounds Write	<0:1.4.3-12.el7_6.2
H Out-of-bounds Write	<0:1.4.3-11.el7_4.1
H Out-of-bounds Write	<0:1.4.3-12.el7_6.2
H Out-of-bounds Write	<0:1.4.3-11.el7_4.1
H Out-of-bounds Write	<0:1.4.3-12.el7_6.2
H Out-of-bounds Write	<0:1.4.3-11.el7_4.1
H Out-of-bounds Write	<0:1.4.3-11.el7_3.1
H Out-of-bounds Write	<0:1.4.3-11.el7_5.1
H Out-of-bounds Write	<0:1.4.3-12.el7_6.2
H Out-of-bounds Write	<0:1.4.3-11.el7_3.1
H Out-of-bounds Write	<0:1.4.3-12.el7_6.2
H Out-of-bounds Write	<0:1.4.3-12.el7_6.2
H Out-of-bounds Write	<0:1.4.3-11.el7_5.1
H Out-of-bounds Write	<0:1.4.3-11.el7_4.1
H Out-of-bounds Write	<0:1.4.3-12.el7_6.2
H Out-of-bounds Write	<0:1.4.3-11.el7_3.1
H Out-of-bounds Write	<0:1.4.3-12.el7_6.2
H Out-of-bounds Write	<0:1.4.3-12.el7_6.2
H Out-of-bounds Write	<0:1.4.3-11.el7_3.1
H Out-of-bounds Write	<0:1.4.3-12.el7_6.2
H Out-of-bounds Write	<0:1.4.3-12.el7_6.2
H Out-of-bounds Write	<0:1.4.3-12.el7_6.2
H Out-of-bounds Write	<0:1.4.3-11.el7_4.1
H Out-of-bounds Write	<0:1.4.3-11.el7_4.1
H Out-of-bounds Write	<0:1.4.3-12.el7_6.2
H Out-of-bounds Write	<0:1.4.3-11.el7_3.1
H Out-of-bounds Write	<0:1.4.3-11.el7_4.1
H Out-of-bounds Write	<0:1.4.3-12.el7_6.2
H Out-of-bounds Write	<0:1.4.3-11.el7_3.1
H Out-of-bounds Write	<0:1.4.3-12.el7_6.2
H Out-of-bounds Write	<0:1.4.3-12.el7_6.2
H Out-of-bounds Write	<0:1.4.3-11.el7_4.1
H Out-of-bounds Write	<0:1.4.3-12.el7_6.2
H Out-of-bounds Write	<0:1.4.3-11.el7_4.1
H Out-of-bounds Write	<0:1.4.3-12.el7_6.2
H Out-of-bounds Write	<0:1.4.3-12.el7_6.2
H Out-of-bounds Write	<0:1.4.3-11.el7_4.1
H Out-of-bounds Write	<0:1.4.3-12.el7_6.2
H Out-of-bounds Write	<0:1.4.3-11.el7_5.1
H Out-of-bounds Write	<0:1.4.3-11.el7_4.1
H Out-of-bounds Write	<0:1.4.3-11.el7_3.1
H Out-of-bounds Write	<0:1.4.3-11.el7_3.1
H Out-of-bounds Write	<0:1.4.3-12.el7_6.2
H Out-of-bounds Write	<0:1.4.3-12.el7_6.2
L Improper Handling of Length Parameter Inconsistency	<0:1.4.3-10.el7
L Improper Handling of Length Parameter Inconsistency	<0:1.4.3-10.el7
L Improper Handling of Length Parameter Inconsistency	<0:1.4.3-10.el7
L Improper Handling of Length Parameter Inconsistency	<0:1.4.3-10.el7
L Improper Handling of Length Parameter Inconsistency	<0:1.4.3-10.el7
L Improper Handling of Length Parameter Inconsistency	<0:1.4.3-10.el7
L Improper Handling of Length Parameter Inconsistency	<0:1.4.3-10.el7
L Improper Handling of Length Parameter Inconsistency	<0:1.4.3-10.el7
L Improper Handling of Length Parameter Inconsistency	<0:1.4.3-10.el7
L Improper Handling of Length Parameter Inconsistency	<0:1.4.3-10.el7
L Improper Handling of Length Parameter Inconsistency	<0:1.4.3-10.el7
L Improper Handling of Length Parameter Inconsistency	<0:1.4.3-10.el7
L Improper Handling of Length Parameter Inconsistency	<0:1.4.3-10.el7
L Improper Handling of Length Parameter Inconsistency	<0:1.4.3-10.el7
L Improper Handling of Length Parameter Inconsistency	<0:1.4.3-10.el7
L Improper Handling of Length Parameter Inconsistency	<0:1.4.3-10.el7
L Improper Handling of Length Parameter Inconsistency	<0:1.4.3-10.el7
L Improper Handling of Length Parameter Inconsistency	<0:1.4.3-10.el7
L Improper Handling of Length Parameter Inconsistency	<0:1.4.3-10.el7
L Improper Handling of Length Parameter Inconsistency	<0:1.4.3-10.el7
L Improper Handling of Length Parameter Inconsistency	<0:1.4.3-10.el7
L Improper Handling of Length Parameter Inconsistency	<0:1.4.3-10.el7
L Improper Handling of Length Parameter Inconsistency	<0:1.4.3-10.el7
M Out-of-bounds Read	*
M Out-of-bounds Read	*
M Out-of-bounds Read	<0:1.8.0-3.el7
M Out-of-bounds Read	<0:1.8.0-3.el7
M Out-of-bounds Read	<0:1.8.0-3.el7
M Out-of-bounds Read	<0:1.8.0-3.el7
M Out-of-bounds Read	<0:1.8.0-3.el7
M Out-of-bounds Read	<0:1.8.0-3.el7
M Out-of-bounds Read	<0:1.8.0-3.el7
M Out-of-bounds Read	<0:1.8.0-3.el7
M Out-of-bounds Read	<0:1.8.0-3.el7
M Out-of-bounds Read	<0:1.8.0-3.el7
M Improper Handling of Length Parameter Inconsistency	<0:1.4.3-12.el7_6.3
M Improper Handling of Length Parameter Inconsistency	<0:1.4.3-12.el7_6.3
M Improper Handling of Length Parameter Inconsistency	<0:1.4.3-12.el7_6.3
M Improper Handling of Length Parameter Inconsistency	<0:1.4.3-12.el7_6.3
M Improper Handling of Length Parameter Inconsistency	<0:1.4.3-12.el7_6.3
M Improper Handling of Length Parameter Inconsistency	<0:1.4.3-12.el7_6.3
M Improper Handling of Length Parameter Inconsistency	<0:1.4.3-12.el7_6.3
M Improper Handling of Length Parameter Inconsistency	<0:1.4.3-12.el7_6.3
M Improper Handling of Length Parameter Inconsistency	<0:1.4.3-12.el7_6.3
M Integer Overflow or Wraparound	<0:1.8.0-4.el7
M Out-of-bounds Write	*

Vulnerability

Vulnerable Version

CVE-2026-66032

Out-of-bounds Read

Buffer Overflow

Uncontrolled Memory Allocation

Access of Uninitialized Pointer

Out-of-bounds Write

Out-of-bounds Read

Unchecked Input for Loop Condition

Integer Overflow or Wraparound

Out-of-bounds Read

Memory Leak

Return of Wrong Status Code

Double Free

Incorrect Calculation

Use After Free

Out-of-bounds Read

<0:1.8.0-4.el7_9.1

Incorrect Type Conversion or Cast

<0:1.4.3-10.el7_2.1

Improper Handling of Length Parameter Inconsistency

<0:1.4.3-10.el7

Integer Overflow or Wraparound

<0:1.8.0-4.el7

Out-of-bounds Read

<0:1.8.0-3.el7

Out-of-bounds Read

<0:1.8.0-3.el7

Improper Handling of Length Parameter Inconsistency

<0:1.4.3-12.el7_6.3

<0:1.4.3-12.el7_6.2

<0:1.4.3-12.el7_6.2

<0:1.4.3-12.el7_6.2

<0:1.4.3-12.el7_6.2

Unchecked Return Value

Truncation of Security-relevant Information

Out-of-bounds Read

<0:1.8.0-4.el7_9.1

Improper Authentication

Incorrect Type Conversion or Cast

<0:1.4.3-10.el7_2.1

Incorrect Type Conversion or Cast

<0:1.4.3-10.el7_2.1

Incorrect Type Conversion or Cast

<0:1.4.3-10.el7_2.1

Incorrect Type Conversion or Cast

<0:1.4.3-10.el7_2.1

Incorrect Type Conversion or Cast

<0:1.4.3-10.el7_2.1

Incorrect Type Conversion or Cast

<0:1.4.3-10.el7_2.1

Incorrect Type Conversion or Cast

<0:1.4.3-10.el7_2.1

Incorrect Type Conversion or Cast

<0:1.4.3-10.el7_2.1

Incorrect Type Conversion or Cast

<0:1.4.3-10.el7_2.1

Incorrect Type Conversion or Cast

<0:1.4.3-10.el7_2.1

Incorrect Type Conversion or Cast

<0:1.4.3-10.el7_2.1

Incorrect Type Conversion or Cast

<0:1.4.3-10.el7_2.1

Incorrect Type Conversion or Cast

<0:1.4.3-10.el7_2.1

Incorrect Type Conversion or Cast

<0:1.4.3-10.el7_2.1

Incorrect Type Conversion or Cast

<0:1.4.3-10.el7_2.1

Incorrect Type Conversion or Cast

<0:1.4.3-10.el7_2.1

Incorrect Type Conversion or Cast

<0:1.4.3-10.el7_2.1

Incorrect Type Conversion or Cast

<0:1.4.3-10.el7_2.1

Incorrect Type Conversion or Cast

<0:1.4.3-10.el7_2.1

Incorrect Type Conversion or Cast

<0:1.4.3-10.el7_2.1

Incorrect Type Conversion or Cast

<0:1.4.3-10.el7_2.1

Incorrect Type Conversion or Cast

<0:1.4.3-10.el7_2.1

<0:1.4.3-12.el7_6.2

<0:1.4.3-12.el7_6.2

<0:1.4.3-12.el7_6.2

<0:1.4.3-11.el7_4.1

<0:1.4.3-11.el7_3.1

<0:1.4.3-11.el7_3.1

<0:1.4.3-12.el7_6.2

<0:1.4.3-11.el7_4.1

<0:1.4.3-12.el7_6.2

<0:1.4.3-12.el7_6.2

<0:1.4.3-12.el7_6.2

<0:1.4.3-11.el7_4.1

<0:1.4.3-12.el7_6.2

<0:1.4.3-12.el7_6.2

<0:1.4.3-11.el7_3.1

<0:1.4.3-11.el7_4.1

<0:1.4.3-11.el7_5.1

<0:1.4.3-12.el7_6.2

<0:1.4.3-12.el7_6.2

<0:1.4.3-12.el7_6.2

<0:1.4.3-12.el7_6.2

<0:1.4.3-11.el7_4.1

<0:1.4.3-12.el7_6.2

<0:1.4.3-11.el7_3.1

<0:1.4.3-12.el7_6.2

<0:1.4.3-11.el7_4.1

<0:1.4.3-12.el7_6.2

<0:1.4.3-11.el7_4.1

<0:1.4.3-12.el7_6.2

<0:1.4.3-11.el7_4.1

<0:1.4.3-11.el7_3.1

<0:1.4.3-11.el7_5.1

<0:1.4.3-12.el7_6.2

<0:1.4.3-11.el7_3.1

<0:1.4.3-12.el7_6.2

<0:1.4.3-12.el7_6.2

<0:1.4.3-11.el7_5.1

<0:1.4.3-11.el7_4.1

<0:1.4.3-12.el7_6.2

<0:1.4.3-11.el7_3.1

<0:1.4.3-12.el7_6.2

<0:1.4.3-12.el7_6.2

<0:1.4.3-11.el7_3.1

<0:1.4.3-12.el7_6.2

<0:1.4.3-12.el7_6.2

<0:1.4.3-12.el7_6.2

<0:1.4.3-11.el7_4.1

<0:1.4.3-11.el7_4.1

<0:1.4.3-12.el7_6.2

<0:1.4.3-11.el7_3.1

<0:1.4.3-11.el7_4.1

<0:1.4.3-12.el7_6.2

<0:1.4.3-11.el7_3.1

<0:1.4.3-12.el7_6.2

<0:1.4.3-12.el7_6.2

<0:1.4.3-11.el7_4.1

<0:1.4.3-12.el7_6.2

<0:1.4.3-11.el7_4.1

<0:1.4.3-12.el7_6.2

<0:1.4.3-12.el7_6.2

<0:1.4.3-11.el7_4.1

<0:1.4.3-12.el7_6.2

<0:1.4.3-11.el7_5.1

<0:1.4.3-11.el7_4.1

<0:1.4.3-11.el7_3.1

<0:1.4.3-11.el7_3.1

<0:1.4.3-12.el7_6.2

<0:1.4.3-12.el7_6.2

Improper Handling of Length Parameter Inconsistency

<0:1.4.3-10.el7

Improper Handling of Length Parameter Inconsistency

<0:1.4.3-10.el7

Improper Handling of Length Parameter Inconsistency

<0:1.4.3-10.el7

Improper Handling of Length Parameter Inconsistency

<0:1.4.3-10.el7

Improper Handling of Length Parameter Inconsistency

<0:1.4.3-10.el7

Improper Handling of Length Parameter Inconsistency

<0:1.4.3-10.el7

Improper Handling of Length Parameter Inconsistency

<0:1.4.3-10.el7

Improper Handling of Length Parameter Inconsistency

<0:1.4.3-10.el7

Improper Handling of Length Parameter Inconsistency

<0:1.4.3-10.el7

Improper Handling of Length Parameter Inconsistency

<0:1.4.3-10.el7

Improper Handling of Length Parameter Inconsistency

<0:1.4.3-10.el7

Improper Handling of Length Parameter Inconsistency

<0:1.4.3-10.el7

Improper Handling of Length Parameter Inconsistency

<0:1.4.3-10.el7

Improper Handling of Length Parameter Inconsistency

<0:1.4.3-10.el7

Improper Handling of Length Parameter Inconsistency

<0:1.4.3-10.el7

Improper Handling of Length Parameter Inconsistency

<0:1.4.3-10.el7

Improper Handling of Length Parameter Inconsistency

<0:1.4.3-10.el7

Improper Handling of Length Parameter Inconsistency

<0:1.4.3-10.el7

Improper Handling of Length Parameter Inconsistency

<0:1.4.3-10.el7

Improper Handling of Length Parameter Inconsistency

<0:1.4.3-10.el7

Improper Handling of Length Parameter Inconsistency

<0:1.4.3-10.el7

Improper Handling of Length Parameter Inconsistency

<0:1.4.3-10.el7

Improper Handling of Length Parameter Inconsistency

<0:1.4.3-10.el7

<0:1.8.0-3.el7

<0:1.8.0-3.el7

<0:1.8.0-3.el7

<0:1.8.0-3.el7

<0:1.8.0-3.el7

<0:1.8.0-3.el7

<0:1.8.0-3.el7

<0:1.8.0-3.el7

<0:1.8.0-3.el7

<0:1.8.0-3.el7

Improper Handling of Length Parameter Inconsistency

<0:1.4.3-12.el7_6.3

Improper Handling of Length Parameter Inconsistency

<0:1.4.3-12.el7_6.3

Improper Handling of Length Parameter Inconsistency

<0:1.4.3-12.el7_6.3

Improper Handling of Length Parameter Inconsistency

<0:1.4.3-12.el7_6.3

Improper Handling of Length Parameter Inconsistency

<0:1.4.3-12.el7_6.3

Improper Handling of Length Parameter Inconsistency

<0:1.4.3-12.el7_6.3

Improper Handling of Length Parameter Inconsistency

<0:1.4.3-12.el7_6.3

Improper Handling of Length Parameter Inconsistency

<0:1.4.3-12.el7_6.3

Improper Handling of Length Parameter Inconsistency

<0:1.4.3-12.el7_6.3

Integer Overflow or Wraparound

<0:1.8.0-4.el7

Out-of-bounds Write