Red Hat Security Advisory: yggdrasil security update
yggdrasil is a system daemon that subscribes to topics on an MQTT broker and routes any data received on the topics to an appropriate child "worker" process, exchanging data with its worker processes through a D-Bus message broker. Security Fix(es): * crypto/x509: golang: Denial of Service due to excessive resource consumption via crafted certificate (CVE-2025-61729) * golang: net/url: Memory exhaustion in query parameter parsing in net/url (CVE-2025-61726) * crypto/tls: Unexpected session resumption in crypto/tls (CVE-2025-68121) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.
AI Analysis
Technical Summary
The yggdrasil daemon, which subscribes to MQTT topics and routes data to worker processes via D-Bus, is affected by three security flaws: CVE-2025-61729 (denial of service caused by excessive resource consumption from crafted certificates in crypto/x509), CVE-2025-61726 (memory exhaustion in query parameter parsing in golang's net/url package), and CVE-2025-68121 (unexpected session resumption in crypto/tls). These vulnerabilities could impact the stability and security of systems running affected versions of yggdrasil on Red Hat Enterprise Linux 10.0 Extended Update Support. Red Hat has released updated packages to remediate these issues.
Potential Impact
The vulnerabilities can lead to denial of service conditions through resource exhaustion or unexpected TLS session behavior, potentially disrupting the yggdrasil daemon's operation. This may affect systems relying on yggdrasil for MQTT message routing and inter-process communication, causing service interruptions or degraded performance.
Mitigation Recommendations
Red Hat has released updated yggdrasil packages for Red Hat Enterprise Linux 10.0 Extended Update Support to address these vulnerabilities. Users should apply the security update as described in Red Hat advisory RHSA-2026:3506 and the referenced article https://access.redhat.com/articles/11258 to remediate these issues. No additional mitigation steps are indicated beyond applying the official update.
Red Hat Security Advisory: yggdrasil security update
Description
yggdrasil is a system daemon that subscribes to topics on an MQTT broker and routes any data received on the topics to an appropriate child "worker" process, exchanging data with its worker processes through a D-Bus message broker. Security Fix(es): * crypto/x509: golang: Denial of Service due to excessive resource consumption via crafted certificate (CVE-2025-61729) * golang: net/url: Memory exhaustion in query parameter parsing in net/url (CVE-2025-61726) * crypto/tls: Unexpected session resumption in crypto/tls (CVE-2025-68121) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.
Affected software
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The yggdrasil daemon, which subscribes to MQTT topics and routes data to worker processes via D-Bus, is affected by three security flaws: CVE-2025-61729 (denial of service caused by excessive resource consumption from crafted certificates in crypto/x509), CVE-2025-61726 (memory exhaustion in query parameter parsing in golang's net/url package), and CVE-2025-68121 (unexpected session resumption in crypto/tls). These vulnerabilities could impact the stability and security of systems running affected versions of yggdrasil on Red Hat Enterprise Linux 10.0 Extended Update Support. Red Hat has released updated packages to remediate these issues.
Potential Impact
The vulnerabilities can lead to denial of service conditions through resource exhaustion or unexpected TLS session behavior, potentially disrupting the yggdrasil daemon's operation. This may affect systems relying on yggdrasil for MQTT message routing and inter-process communication, causing service interruptions or degraded performance.
Mitigation Recommendations
Red Hat has released updated yggdrasil packages for Red Hat Enterprise Linux 10.0 Extended Update Support to address these vulnerabilities. Users should apply the security update as described in Red Hat advisory RHSA-2026:3506 and the referenced article https://access.redhat.com/articles/11258 to remediate these issues. No additional mitigation steps are indicated beyond applying the official update.
Technical Details
- Gcve Source
- db.gcve.eu
- Csaf Category
- csaf_security_advisory
- Csaf Version
- 2.0
- Publisher
- Red Hat Product Security
- Advisory Id
- RHSA-2026:3506
- Cve Count
- 3
- Additional Cves
- ["CVE-2025-61729","CVE-2025-68121"]
- State
- PUBLISHED
Threat ID: 6a16096ae29bf47b506301c4
Added to database: 05/26/2026, 20:58:18 UTC
Last enriched: 08/14/2026, 19:44:02 UTC
Last updated: 09/14/2026, 01:36:24 UTC
Views: 100
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