In chunked mode, used when no content length is given, add() treats a chunk as complete once the buffer is as long as the chunk's declared size, but the buffer still holds the chunk-size line. When a read ends in the last bytes of a chunk, add() takes the chunk short and parses the leftover data as the next chunk-size line.
A remote attacker can make a chunked body never complete, hanging a server that reads until the body is done, and may make it complete early, leaving the remaining bytes to be read as the next request.
Analysis
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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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| unaffected |
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Vendor Solution
Upgrade to HTTP-Body 1.23_01 or later.
Tracking
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Wed, 28 Oct 2026 17:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | HTTP::Body versions before 1.23_01 for Perl lose track of chunk boundaries in chunked request bodies when a read ends inside a chunk. In chunked mode, used when no content length is given, add() treats a chunk as complete once the buffer is as long as the chunk's declared size, but the buffer still holds the chunk-size line. When a read ends in the last bytes of a chunk, add() takes the chunk short and parses the leftover data as the next chunk-size line. A remote attacker can make a chunked body never complete, hanging a server that reads until the body is done, and may make it complete early, leaving the remaining bytes to be read as the next request. | |
| Title | HTTP::Body versions before 1.23_01 for Perl lose track of chunk boundaries in chunked request bodies when a read ends inside a chunk | |
| Weaknesses | CWE-130 | |
| References |
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Subscriptions
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MITRE
Status: PUBLISHED
Assigner: CPANSec
Published:
Updated: 2026-10-28T17:16:42.065Z
Reserved: 2026-10-26T14:17:16.250Z
Link: CVE-2026-116531
Vulnrichment
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NVD
Status : Received
Published: 2026-10-28T18:17:14.013
Modified: 2026-10-28T18:17:14.013
Link: CVE-2026-116531
Redhat
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OpenCVE Enrichment
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