CVE-2026-34478
CVE-2026-34478: 4 tracked advisory records across Apache, NetApp, Red Hat. Compare vendor sources and published fix guidance.
Compare the source-linked records below. Ratings and product/version details belong to each advisory; they are not a single CVE-wide score or proof that every listed product is affected. How VulniPulse collects and checks evidence.
Vendor advisory comparison
Apache
1 advisory- Advisory severityMedium6.9
Medium [CVE-2026-34478] Apache Log4j Core's Rfc5424Layout https://logging.apache.org/log4j/2.x/manual/layouts.html#RFC5424Layout , in versions 2.21.0…
CVE-2026-34478Source published Source updated
Apache Log4j Core's Rfc5424Layout , in versions 2.21.0 through 2.25.3, is vulnerable to log injection via CRLF sequences due to undocumented renames of security-relevant configuration attributes. Two distinct issues affect users of stream-based syslog services who configure Rfc5424Layout directly: * The newLineEscape attribute was silently renamed, causing newline escaping to stop working for users of TCP framing (RFC 6587), exposing them to CRLF injection in log output. * The useTlsMessageFormat attribute was silently renamed, causing users of TLS framing (RFC 5425) to be silently downgraded to unframed TCP (RFC 6587), without newline escaping. Users of the SyslogAppender are not affected, as its configuration attributes were not modified. Users are advised to upgrade to Apache Log4j…
- Affected products in this advisory
- Apache Log4j
- Apache Log4j Core
- Log4j
- Source-reported affected versions
- through 2.25.3
- Source-reported fixed versions
- 2.25.4
- Mitigation guidance
- No mitigation guidance extracted; consult the source.
NetApp
2 advisories- Advisory severityHigh7.5
High [CVE-2026-34477 +2] June 2026 IBM Db2 Apache Log4j Vulnerabilities in NetApp Products
NTAP-20260626-0009Source published Source updated
This bulletin covers 3 CVEs. The products, versions, score and guidance below describe the bulletin; check its source for applicability to this specific CVE.
IBM Db2 Server versions 11.5.0 through 11.5.9 and 12.1.0 through 12.1.4 on all platforms are susceptible to vulnerabilities in log4j v2.25.3. Successful exploitation of these vulnerabilities could lead to disclosure of sensitive information or addition or modification of data. NetApp states there is no workaround available at this time.
- Affected products in this advisory
- No product details extracted. Check the source bulletin.
- Source-reported affected versions
- 11.5.0
- 11.5.9
- 12.1.0
- 12.1.4
1 more entries in the full advisory.
- Source-reported fixed versions
- No fixed-version detail extracted. This does not mean no fix exists.
- Mitigation guidance
- No mitigation guidance extracted; consult the source.
- Advisory severityMedium6.9
Medium [CVE-2026-34478] Apache Log4j Vulnerability in NetApp Products
NTAP-20260710-0002Source published Source updated
Apache Log4j versions 2.21.0 through 2.25.3 and 3.0.0-alpha1 through 3.0.0-beta3 are susceptible to a vulnerability which when successfully exploited could lead to addition or modification of data. Successful exploitation of this vulnerability could lead to addition or modification of data. Affected products: Data Infrastructure Insights and Data Secure Storage Workload Security Agent. NetApp reports that one or more additional products remain under investigation; review the canonical advisory for current status. NetApp states there is no workaround available at this time.
- Affected products in this advisory
- Data Infrastructure Insights and Data Secure Storage Workload Security Agent
- Source-reported affected versions
- 2.21.0
- 2.25.3
- 3.0.0
- Source-reported fixed versions
- No fixed-version detail extracted. This does not mean no fix exists.
- Mitigation guidance
- Data Infrastructure Insights and Data Secure Storage Workload Security Agent: Fixed as of 20260727.
Red Hat
1 advisory- Advisory severityMedium5.8
Medium [CVE-2026-34478] Log injection via CRLF sequences due to configuration attribute renames
CVE-2026-34478Source published
Log injection via CRLF sequences due to configuration attribute renames. Red Hat rates this moderate (CVSS 5.8). Weakness: CWE-93. Affected package(s): log4j-core-test, offline-knowledge-portal/rhokp-rhel9:1779996999, log4j-core. Resolved in Red Hat advisory RHSA-2026:22619 — update the affected packages (`sudo dnf update`).
- Related products — impact not confirmed
- log4j-core-test
- offline-knowledge-portal/rhokp-rhel9:1779996999
- Red Hat Enterprise Linux
- Source-reported affected versions
- log4j-core-test
- offline-knowledge-portal/rhokp-rhel9:1779996999
- log4j-core
- Source-reported fixed versions
- RHSA-2026:22619
- Mitigation guidance
- Update the affected package(s) to the fixed version shipped in RHSA-2026:22619 (`sudo dnf update` / `yum update`).
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