There is no fixed version for Jansson .

gitweb vulnerabilities

Direct Vulnerabilities

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

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Vulnerability	Vulnerable Version
H Improper Encoding or Escaping of Output	*
L Improper Encoding or Escaping of Output	*
L Improper Encoding or Escaping of Output	*
L Symlink Following	*
M Directory Traversal	*
H Improper Process Control	*
L UNIX Hard Link	*
H Directory Traversal	*
H Directory Traversal	*
H Arbitrary Code Injection	*
L Use of Externally-Controlled Format String	*
M Directory Traversal	*
M Resource Leak	*
H Integer Overflow or Wraparound	*
H Integer Overflow or Wraparound	*
M Link Following	*
M Out-of-bounds Write	*
M Uncontrolled Search Path Element	*
H Arbitrary Command Injection	<0:1.7.1-10.el6_10
H Improper Input Validation	<0:1.7.1-9.el6_9
M Improper Input Validation	<0:1.7.1-3.el6_4.1
H Incorrect Calculation of Buffer Size	<0:1.7.1-4.el6_7.1
H Incorrect Calculation of Buffer Size	<0:1.7.1-4.el6_7.1
M Cross-site Scripting (XSS)	<0:1.7.1-2.el6_0.1
M Improper Input Validation	*
M CVE-2017-8386	*
M Improper Input Validation	*
L Resource Exhaustion	*
M Link Following	*
M OS Command Injection	*