Russh: Unbounded memory exhaustion via CHANNEL_OPEN flood during a client-stalled rekey

These records connect through source-stated identifiers. Shared identifiers or dates alone do not establish shared exposure, root cause or applicability.

CVE-2026-102821 · Microsoft / collected KEV context

EUVD-2026-89204

GHSA-35g8-35p8-c8fw

cve-program · CVE-2026-102821

• https://github.com/Eugeny/russh/security/advisories/GHSA-35g8-35p8-c8fw
• https://github.com/Eugeny/russh/commit/a282af361ac99bc76b80876d1aae128e89dbf66b
• https://github.com/Eugeny/russh/releases/tag/v0.63.2

euvd · EUVD-2026-89204

• https://github.com/Eugeny/russh/security/advisories/GHSA-35g8-35p8-c8fw
• https://github.com/Eugeny/russh/commit/a282af361ac99bc76b80876d1aae128e89dbf66b
• https://github.com/Eugeny/russh/releases/tag/v0.63.2

nvd · CVE-2026-102821

• https://github.com/Eugeny/russh/commit/a282af361ac99bc76b80876d1aae128e89dbf66b
• https://github.com/Eugeny/russh/releases/tag/v0.63.2
• https://github.com/Eugeny/russh/security/advisories/GHSA-35g8-35p8-c8fw

osv · GHSA-35g8-35p8-c8fw

• https://github.com/Eugeny/russh/security/advisories/GHSA-35g8-35p8-c8fw
• https://nvd.nist.gov/vuln/detail/CVE-2026-102821
• https://github.com/Eugeny/russh/commit/a282af361ac99bc76b80876d1aae128e89dbf66b
• https://github.com/Eugeny/russh
• https://github.com/Eugeny/russh/releases/tag/v0.63.2

No related operational record is retained in the current change model.