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THREAT OPS › Threat News › [NVD] CVE-2026-17084 — The "stringprep" module didn't process characters from RFC 3454 tables B.2 or B.3 correctly: the latest Unicode codepoint attributes were used instead of the specified Unicode 3.2.0. This behavior would cause mismatches when processing domain names using IDNA 2003 (the "idna"

[NVD] CVE-2026-17084 — The "stringprep" module didn't process characters from RFC 3454 tables B.2 or B.3 correctly: the latest Unicode codepoint attributes were used instead of the specified Unicode 3.2.0. This behavior would cause mismatches when processing domain names using IDNA 2003 (the "idna"

mednvdPublished 2026-08-18

CVE-2026-17084 CVSS: None Published: 2026-08-18T14:16:56.290

The "stringprep" module didn't process characters from RFC 3454 tables B.2 or B.3 correctly: the latest Unicode codepoint attributes were used instead of the specified Unicode 3.2.0. This behavior would cause mismatches when processing domain names using IDNA 2003 (the "idna" codec) and the in_table_b2() function of the "stringprep

Indicators of compromise

Original source: https://nvd.nist.gov/vuln/detail/CVE-2026-17084

Same event, other sources