🥅 Validate ID values contain only valid bytes#698
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Also update internal RawText docs.
This shares most of the validation implementation with RawText, via an extracted shared superclass. Please note: in currently released `net-imap`, QuotedString is _not_ used to quote regular string arguments. It's currently only used by `Net::IMAP#id` (the `ID` extension). Without this patch, `Net::IMAP#id` is vulnerable to the same CRLF injection issues in GHSA-75xq-5h9v-w6px and GHSA-hm49-wcqc-g2xg. The string will be quoted, which may limit the ability to inject some commands. Presumably, `Net::IMAP#id` is unlikely to be called with user-provided input, making this less likely to be exploitable. Nevertheless, CRLF injection should be prevented!
This removes the duplicated string quoting implementation. It also introduces stricter enforcement of `quoted` string validation..
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This was referenced Jun 9, 2026
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This shares most of the validation implementation with
RawText, via an extracted shared superclass.In currently released versions of
net-imap,QuotedStringis not used to quote regular string arguments. It's currently only used byNet::IMAP#id(theIDextension). This PR reverses the dependency, so thatsend_string_datacallsQuotedString, rather than vice versa.Without this patch,
Net::IMAP#idis vulnerable to the same type of CRLF injection issues as in CVE-2026-42258 (GHSA-75xq-5h9v-w6px) and CVE-2026-42257 (GHSA-hm49-wcqc-g2xg). The string will be quoted, which imposes some limits on what command arguments can be injected, but many destructive commands will work fine without any quoted specials.Presumably,
Net::IMAP#idshould be very unlikely to be called with untrusted input, making this less likely to be exploitable. Nevertheless, CRLF injection should be prevented!