CVE-2026-42245

Exploitation

Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.

SSVC decision

• ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
• AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
• Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.

CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.

EPSS probability

0.41% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 34.0% of scored records. A rank, not a probability.

NVD base score

2.3 (CVSS v4.0), scored by the NVD independently of the CNA.

NVD CVSS vector

CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

NVD analysis status

Analyzed. NVD last modified this record on 2026-07-24.

Red Hat severity

Moderate. Red Hat's rating for its own products, not a CVSS rating.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

Published

2026-05-09 19:37Z3 MO AGO

Last updated

2026-05-12 18:30Z3 MO AGO

Reserved

2026-04-25

Assigning CNA

GitHub_M

Record state

PUBLISHED

Severity

Low (CVSS 2.3)

CNA CVSS vector

CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N

Weaknesses

• CWE-407Inefficient Algorithmic ComplexityClass
• CWE-606Unchecked Input for Loop ConditionBase

Data version

5.2

Document digest

fef16c8aa086691e966120316cf0214b19d845baa6e0099e8274dbab95d2dd68

• github.comhttps://github.com/ruby/net-imap/security/advisories/GHSA-q2mw-fvj9-vvcwx_refsource_CONFIRM
• github.comhttps://github.com/ruby/net-imap/commit/6091f7d6b1f3514cafbfe39c76f2b5d73de3ca96x_refsource_MISC
• github.comhttps://github.com/ruby/net-imap/commit/88d95231fc8afef11c1f074453f7d75b68c9dfdax_refsource_MISC
• github.comhttps://github.com/ruby/net-imap/commit/de685f91a4a4cc75eb80da898c2bf8af08d34819x_refsource_MISC
• github.comhttps://github.com/ruby/net-imap/releases/tag/v0.4.24x_refsource_MISC
• github.comhttps://github.com/ruby/net-imap/releases/tag/v0.5.14x_refsource_MISC
• github.comhttps://github.com/ruby/net-imap/releases/tag/v0.6.4x_refsource_MISC