CVE-2025-52887

cpp-httplib is a C++11 single-file header-only cross platform HTTP/HTTPS library. In version 0.21.0, when many http headers fields are passed in, the library does not limit the number of headers, and the memory associated with the headers will not be released when the connection is disconnected. This leads to potential exhaustion of system memory and results in a server crash or unresponsiveness. Version 0.22.0 contains a patch for the issue.

References

Affected packages

Git / github.com/yhirose/cpp-httplib

Affected ranges

Type: GIT
Repo: https://github.com/yhirose/cpp-httplib
Events: Introduced

0 Unknown introduced commit / All previous commits are affected

Fixed

28dcf379e82a2cdb544d812696a7fd46067eb7f9

Affected versions

v0.*

v0.10.0

v0.10.1

v0.10.2

v0.10.3

v0.10.4

v0.10.5

v0.10.6

v0.10.7

v0.10.8

v0.10.9

v0.11.0

v0.11.1

v0.11.2

v0.11.3

v0.11.4

v0.12.0

v0.12.1

v0.12.2

v0.12.3

v0.12.4

v0.12.5

v0.12.6

v0.13.0

v0.13.1

v0.13.2

v0.13.3

v0.14.0

v0.14.1

v0.14.2

v0.14.3

v0.15.0

v0.15.1

v0.15.2

v0.15.3

v0.16.0

v0.16.1

v0.16.2

v0.16.3

v0.17.0

v0.17.1

v0.17.2

v0.17.3

v0.18.0

v0.18.1

v0.18.2

v0.18.3

v0.18.4

v0.18.5

v0.18.6

v0.18.7

v0.19.0

v0.2.0

v0.2.1

v0.2.2

v0.2.3

v0.2.4

v0.2.5

v0.2.6

v0.20.0

v0.20.1

v0.21.0

v0.3.0

v0.3.1

v0.3.2

v0.3.3

v0.4.0

v0.4.1

v0.4.2

v0.5.0

v0.5.1

v0.5.10

v0.5.11

v0.5.12

v0.5.13

v0.5.2

v0.5.3

v0.5.4

v0.5.5

v0.5.6

v0.5.7

v0.5.8

v0.5.9

v0.6.0

v0.6.1

v0.6.2

v0.6.3

v0.6.4

v0.6.5

v0.6.6

v0.6.7

v0.7.0

v0.7.1

v0.7.10

v0.7.11

v0.7.12

v0.7.13

v0.7.14

v0.7.15

v0.7.16

v0.7.17

v0.7.18

v0.7.2

v0.7.3

v0.7.4

v0.7.5

v0.7.6

v0.7.7

v0.7.8

v0.7.9

v0.8.0

v0.8.1

v0.8.2

v0.8.3

v0.8.4

v0.8.5

v0.8.6

v0.8.7

v0.8.8

v0.8.9

v0.9.0

v0.9.1

v0.9.10

v0.9.2

v0.9.3

v0.9.4

v0.9.5

v0.9.6

v0.9.7

v0.9.8

v0.9.9