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CVE-2026-42256

Опубликовано: 09 мая 2026
Источник: ubuntu
Приоритет: medium
EPSS Низкий
CVSS3: 6.5

Описание

Net::IMAP implements Internet Message Access Protocol (IMAP) client functionality in Ruby. From versions 0.4.0 to before 0.4.24, 0.5.0 to before 0.5.14, and 0.6.0 to before 0.6.4, when authenticating a connection with SCRAM-SHA1 or SCRAM-SHA256, a hostile server can perform a computational denial-of-service attack on the client process by sending a big iteration count value. This issue has been patched in versions 0.4.24, 0.5.14, and 0.6.4.

РелизСтатусПримечание
devel

needs-triage

esm-apps-legacy/xenial

not-affected

no ResponseReader/SCRAM class in bundled net/imap.rb
esm-apps/bionic

not-affected

no ResponseReader/SCRAM class in bundled net/imap.rb
esm-apps/focal

not-affected

no ResponseReader/SCRAM class in bundled net/imap.rb
esm-apps/noble

not-affected

no ResponseReader/SCRAM class in bundled net/imap.rb
esm-apps/resolute

not-affected

no ResponseReader/SCRAM class in bundled net/imap.rb
esm-apps/xenial

ignored

end of ESM support, was needs-triage
esm-infra-legacy/trusty

not-affected

no ResponseReader/SCRAM class in bundled net/imap.rb
jammy

DNE

noble

not-affected

no ResponseReader/SCRAM class in bundled net/imap.rb

Показывать по

РелизСтатусПримечание
devel

DNE

esm-infra-legacy/xenial

not-affected

no SCRAM authenticator in ruby2.3 stdlib
esm-infra/xenial

ignored

end of ESM support, was needs-triage
jammy

DNE

noble

DNE

questing

DNE

resolute

DNE

upstream

not-affected

no SCRAM authenticator in ruby2.3 stdlib

Показывать по

РелизСтатусПримечание
devel

DNE

esm-infra/bionic

not-affected

SCRAM-SHA authenticator not present in ruby2.5 stdlib
jammy

DNE

noble

DNE

questing

DNE

resolute

DNE

upstream

not-affected

Показывать по

РелизСтатусПримечание
devel

DNE

esm-infra/focal

not-affected

no SCRAM authenticator in stdlib net/imap
jammy

DNE

noble

DNE

questing

DNE

resolute

DNE

upstream

not-affected

no SCRAM authenticator in stdlib net/imap

Показывать по

РелизСтатусПримечание
devel

DNE

jammy

not-affected

no SCRAM authenticator in stdlib net/imap
noble

DNE

questing

DNE

resolute

DNE

upstream

not-affected

no SCRAM authenticator in stdlib net/imap

Показывать по

РелизСтатусПримечание
devel

DNE

jammy

DNE

noble

not-affected

no SCRAM authenticator; net-imap 0.3.4.1 predates SCRAM added in 0.4.0
questing

DNE

resolute

DNE

upstream

not-affected

no SCRAM authenticator; net-imap 0.3.4.1 predates SCRAM added in 0.4.0

Показывать по

РелизСтатусПримечание
devel

needs-triage

jammy

DNE

noble

DNE

questing

ignored

end of standard support
resolute

released

3.3.8-2ubuntu3.1
upstream

needs-triage

Показывать по

EPSS

Процентиль: 22%
0.00299
Низкий

6.5 Medium

CVSS3

Связанные уязвимости

CVSS3: 6.5
redhat
3 месяца назад

Net::IMAP implements Internet Message Access Protocol (IMAP) client functionality in Ruby. From versions 0.4.0 to before 0.4.24, 0.5.0 to before 0.5.14, and 0.6.0 to before 0.6.4, when authenticating a connection with SCRAM-SHA1 or SCRAM-SHA256, a hostile server can perform a computational denial-of-service attack on the client process by sending a big iteration count value. This issue has been patched in versions 0.4.24, 0.5.14, and 0.6.4.

CVSS3: 6.5
nvd
3 месяца назад

Net::IMAP implements Internet Message Access Protocol (IMAP) client functionality in Ruby. From versions 0.4.0 to before 0.4.24, 0.5.0 to before 0.5.14, and 0.6.0 to before 0.6.4, when authenticating a connection with SCRAM-SHA1 or SCRAM-SHA256, a hostile server can perform a computational denial-of-service attack on the client process by sending a big iteration count value. This issue has been patched in versions 0.4.24, 0.5.14, and 0.6.4.

msrc
3 месяца назад

net-imap: Denial of service via high iteration count for `SCRAM-*` authentication

CVSS3: 6.5
debian
3 месяца назад

Net::IMAP implements Internet Message Access Protocol (IMAP) client fu ...

suse-cvrf
около 1 месяца назад

Security update for rmt-server

EPSS

Процентиль: 22%
0.00299
Низкий

6.5 Medium

CVSS3

Уязвимость CVE-2026-42256