Red Hat Security Advisory: idm:DL1 security update
Affects Red Hat python-kdcproxySource GCVE Database
Mentioned vulnerabilities
Not known to be exploited · CVSS 8.6 High : upgrade the Red Hat redhat/python-kdcproxy package to 8.10.1 soon.
Data as of 26 Oct 2026, 14:05 UTC
- EPSS
- 0.4% chance of exploitation in 30 days – higher than 41% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
- Patch
- Available – fixed in 8.10.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:NExploitation evidence
Disclosed: evidence found.
CVE published 12 Nov 2025
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.
What to do
Upgrade the Red Hat redhat/python-kdcproxy package to 8.10.1.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
Red Hatredhat/python-kdcproxypkg:rpm/redhat/python-kdcproxyOther threats | Affected
| Fixed in
|
Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.
AI-suggested
Red Hat has released an official security update (RHSA-2025:21140) for Red Hat Enterprise Linux 8 that addresses these vulnerabilities. Users should apply the provided update packages to remediate the issues. For detailed update instructions, refer to Red Hat's official guidance at https://access.redhat.com/articles/11258. No additional mitigations are specified by the vendor advisory.
Description
Red Hat Identity Management (IdM) for Red Hat Enterprise Linux 8 has security vulnerabilities in the python-kdcproxy component. These include an unauthenticated Server-Side Request Forgery (SSRF) via realm-controlled DNS SRV records (CVE-2025-59088) and a remote denial of service (DoS) caused by unbounded TCP upstream buffering (CVE-2025-59089). Red Hat has released an important security update addressing these issues.
References
- access.redhat.com/errata/RHSA-2025:21140 (opens in a new tab)
- access.redhat.com/security/updates/classification/ (opens in a new tab)
- bugzilla.redhat.com/show_bug.cgi?id=2393955 (opens in a new tab)
- bugzilla.redhat.com/show_bug.cgi?id=2393958 (opens in a new tab)
- security.access.redhat.com/data/csaf/v2/advisories/2025/rhsa-2025_21140.json (opens in a new tab)