Red Hat Security Advisory: go-fdo-server security update
Red Hat has issued a security advisory for the go-fdo-server package, which implements the FIDO Device Onboard (FDO) specification in Go. The advisory addresses two vulnerabilities: a memory-safety issue in the github. com/jackc/pgx library (CVE-2026-33816) and a denial of service vulnerability in Go's crypto/tls package triggered by multiple TLS 1. 3 key update messages (CVE-2026-32283). These vulnerabilities affect Red Hat Enterprise Linux 10 and related variants. The update is rated as Important by Red Hat Product Security. A security update is available to remediate these issues. No known exploits are reported in the wild at this time.
AI Analysis
Technical Summary
The go-fdo-server package for Red Hat Enterprise Linux 10 contains two security vulnerabilities. The first (CVE-2026-33816) is a memory-safety vulnerability in the github.com/jackc/pgx/v5 library used by the package. The second (CVE-2026-32283) is a denial of service vulnerability in the Go crypto/tls package caused by processing multiple TLS 1.3 key update messages. These issues could potentially impact the secure onboarding of devices using the FIDO Device Onboard protocol. Red Hat has released updated packages to address these vulnerabilities as detailed in advisory RHSA-2026:19137.
Potential Impact
The memory-safety vulnerability could lead to undefined behavior or crashes in the go-fdo-server service, potentially affecting device onboarding operations. The denial of service vulnerability in the TLS implementation could allow an attacker to disrupt service availability by sending multiple TLS 1.3 key update messages. Both vulnerabilities are rated with high severity by Red Hat, indicating significant impact if exploited. However, no known exploits are currently reported in the wild.
Mitigation Recommendations
Red Hat has released updated go-fdo-server packages that fix these vulnerabilities. Users of affected Red Hat Enterprise Linux 10 systems should apply the security update as described in Red Hat advisory RHSA-2026:19137 and the referenced update article (https://access.redhat.com/articles/11258). Applying the official patch is the recommended remediation. There is no indication that additional mitigations are required beyond installing the update.
Red Hat Security Advisory: go-fdo-server security update
Description
Red Hat has issued a security advisory for the go-fdo-server package, which implements the FIDO Device Onboard (FDO) specification in Go. The advisory addresses two vulnerabilities: a memory-safety issue in the github. com/jackc/pgx library (CVE-2026-33816) and a denial of service vulnerability in Go's crypto/tls package triggered by multiple TLS 1. 3 key update messages (CVE-2026-32283). These vulnerabilities affect Red Hat Enterprise Linux 10 and related variants. The update is rated as Important by Red Hat Product Security. A security update is available to remediate these issues. No known exploits are reported in the wild at this time.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The go-fdo-server package for Red Hat Enterprise Linux 10 contains two security vulnerabilities. The first (CVE-2026-33816) is a memory-safety vulnerability in the github.com/jackc/pgx/v5 library used by the package. The second (CVE-2026-32283) is a denial of service vulnerability in the Go crypto/tls package caused by processing multiple TLS 1.3 key update messages. These issues could potentially impact the secure onboarding of devices using the FIDO Device Onboard protocol. Red Hat has released updated packages to address these vulnerabilities as detailed in advisory RHSA-2026:19137.
Potential Impact
The memory-safety vulnerability could lead to undefined behavior or crashes in the go-fdo-server service, potentially affecting device onboarding operations. The denial of service vulnerability in the TLS implementation could allow an attacker to disrupt service availability by sending multiple TLS 1.3 key update messages. Both vulnerabilities are rated with high severity by Red Hat, indicating significant impact if exploited. However, no known exploits are currently reported in the wild.
Mitigation Recommendations
Red Hat has released updated go-fdo-server packages that fix these vulnerabilities. Users of affected Red Hat Enterprise Linux 10 systems should apply the security update as described in Red Hat advisory RHSA-2026:19137 and the referenced update article (https://access.redhat.com/articles/11258). Applying the official patch is the recommended remediation. There is no indication that additional mitigations are required beyond installing the 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-2026:19137
- Cve Count
- 2
- Additional Cves
- ["CVE-2026-33816"]
- Cvss Version
- null
Threat ID: 6a160978e29bf47b50644e67
Added to database: 5/26/2026, 8:58:32 PM
Last enriched: 5/26/2026, 11:20:34 PM
Last updated: 5/27/2026, 4:51:54 AM
Views: 2
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