cpp-httplib Unbounded Memory Allocation in Chunked/No-Length Requests Vulnerability
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | ||||||
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| yhirose | cpp-httplib | affected |
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No data.
| Vendor | Product | Versions |
|---|---|---|
| Yhirose | Cpp-httplib | — |
| Source | ID | Title |
|---|---|---|
Debian DSA |
DSA-6228-1 | cpp-httplib security update |
EUVD |
EUVD-2025-21055 | cpp-httplib is a C++11 single-file header-only cross platform HTTP/HTTPS library. Prior to 0.23.0, incoming requests using Transfer-Encoding: chunked in the header can allocate memory arbitrarily in the server, potentially leading to its exhaustion. This vulnerability is fixed in 0.23.0. NOTE: This vulnerability is related to CVE-2025-53628. |
No CVSS v4.0
No CVSS v3.0
No CVSS v2
This CVE is not in the KEV list.
Exploit prediction score: < 1% (0.594% probability within 30 days)
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| CPEs | cpe:2.3:a:yhirose:cpp-httplib:*:*:*:*:*:*:*:* |
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| Metrics |
epss
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epss
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| Metrics |
epss
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| Description | cpp-httplib is a C++11 single-file header-only cross platform HTTP/HTTPS library. Prior to 0.23.0, incoming requests using Transfer-Encoding: chunked in the header can allocate memory arbitrarily in the server, potentially leading to its exhaustion. This vulnerability is fixed in 0.23.0. NOTE: This vulnerability is related to CVE-2025-53628. | |
| Title | cpp-httplib Unbounded Memory Allocation in Chunked/No-Length Requests Vulnerability | |
| Weaknesses | CWE-770 | |
| References |
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| Metrics |
cvssV3_1
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