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Description

sppp_pap_input in sys/net/if_spppsubr.c in OpenBSD before 076e2b1 allows authentication bypass via certain zero values for lengths.

PUBLISHED Reserved 2026-06-17 | Published 2026-06-17 | Updated 2026-06-17 | Assigner mitre




MEDIUM: 5.8CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:L

Problem types

CWE-1284 Improper Validation of Specified Quantity in Input

Product status

Default status
unaffected

Any version before 076e2b1c1fc4ac0883a72d3544131ad5cee7adf8
affected

References

blog.argus-systems.ai/...penbsd-pap-27-year-auth-bypass.html

www.openwall.com/lists/oss-security/2026/06/16/9

github.com/...ommit/076e2b1c1fc4ac0883a72d3544131ad5cee7adf8

cve.org (CVE-2026-55706)

nvd.nist.gov (CVE-2026-55706)

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