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CVE and vendor PSIRT advisories from 13 sources, last 30 days. Updated hourly, last run Oct 26 05:05 UTC

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2 critical, 46 high, 62 medium, 30 low

Expand	Severity	Score	Advisory	Title	Source	Flags	Published
	High	8.1	RHSA-2026:89742	python3.9 security update Red Hat, PythonRed Hat Enterprise Linux, Red Hat CodeReady Linux Builder, Red Hat Enterprise Linux for x86_64 9, Red Hat Enterprise Linux for IBM z Systems 9, Red Hat Enterprise Linux for Power, little endian 9, Red Hat Enterprise Linux for ARM 64 9, python3.9	Red Hat Security Advisories		Oct 26 04:45 UTC
RHSA-2026:89742CVE-2026-12345CVE-2026-19445CVE-2026-19553python3.9 security update Executive summary Red Hat's advisory RHSA-2026:89742 covers a security update for the python3.9 package on Red Hat Enterprise Linux 9 and several related editions and support tracks. Red Hat rates the update as Important and says it fixes three flaws, including a certificate verification bypass and a use-after-free issue. The vendor recommends applying the update, and the advisory points to Red Hat's standard update instructions. Technical summary The advisory fixes three python3.9 flaws: CVE-2026-12345, an arbitrary file deletion caused by a race condition during temporary directory cleanup; CVE-2026-19553, a certificate verification bypass from missing server_hostname validation in SSLContext.wrap_bio(); and CVE-2026-19445, a use-after-free of a server-side SSLContext when sni_callback switches contexts. The advisory does not state the attack vector or preconditions beyond these descriptions, and it does not give CVSS scores, though it says they are available on the linked CVE pages. Fixed package version is python3.9-3.9.25-7.el9_8.6 for the listed RHEL 9 and related channels. No workarounds are stated, and no detection guidance or exploitation status is given. Summaries are generated by AI from the linked advisory text. Confirm versions and fixes at the source. Summarized from access.redhat.com/errata/RHSA-2026:89742 Impact if exploited ConfidentialityHigh IntegrityHigh AvailabilityHigh How it is exploited Attack vector Network Attack complexity High Privileges required None User interaction None Scope Unchanged CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H Affects Red Hat Python Red Hat Enterprise Linux Red Hat CodeReady Linux Builder Red Hat Enterprise Linux for x86_64 9 Red Hat Enterprise Linux for IBM z Systems 9 Red Hat Enterprise Linux for Power, little endian 9 Red Hat Enterprise Linux for ARM 64 9 python3.9 Red Hat Product SecurityPublished Oct 26, 2026 04:45 UTC Read the advisory

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