Linux · 
Ubuntu · Package update · December 5, 2025
Ubuntu · Package update · December 5, 2025libcpp-httplib0.18 0.18.7-1ubuntu0.25.10.1: libcpp-httplib0.18 0.18.7-1ubuntu0.25.10.1 for Ubuntu 25.10 (questing)
libcpp-httplib0.18 0.18.7-1ubuntu0.25.10.1, released December 5, 2025, fixes 2 CVEs in libcpp-httplib0.18. None of them is reported as exploited. Patch Radar priority: Urgent. The product is no longer supported.
UrgentUnsupported product
CVEs closed
2
1 rated Critical
Exploited
0
None reported
Highest CVSS
9.8
Base score, 0 to 10
Highest EPSS
0.0035
28th percentile
Priority of the 2 CVEs
Patch now 0
Urgent 1
High 0
Routine 1
Fixed package versions
| Product | Release | Fixed in |
|---|---|---|
| libcpp-httplib0.18 | Ubuntu 25.10 (questing) | 0.18.7-1ubuntu0.25.10.1 |
CVEs this fix closes
| Priority | CVE | Title | CVSS | EPSS | Exploitation |
|---|---|---|---|---|---|
| Urgent | CVE-2025-66570 | cpp-httplib: IP spoofing, log poisoning, and authorization bypass via header shadowing due to acceptance and | 9.8 | 0.0035 | None reported |
| Routine | CVE-2025-66577 | cpp-httplib: access and error log poisoning with spoofed client IPs due to unconditional acceptance of | 5.3 | 0.0029 | None reported |
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