GO-2025-4015

vendorUSosv

Excessive CPU consumption in Reader.ReadResponse in net/textproto

view advisory published 2025-10-29Licence: per source

The Reader.ReadResponse function constructs a response string through repeated string concatenation of lines. When the number of lines in a response is large, this can cause excessive CPU consumption.

describes (1)

Related CVEs.

ID	severity	EPSS	exploitable	published
CVE-2025-61724US	—	0.56% (46th)	—	2025-10-29
The Reader.ReadResponse function constructs a response string through repeated string concatenation of lines. When the number of lines in a response is large, this can cause excess…

references

External citations — patches, advisories, analysis.

https://go.dev/cl/709859FIX
https://go.dev/issue/75716REPORT
https://groups.google.com/g/golang-announce/c/4Emdl2iQ_bIWEB

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