CVE-2026-27674: Due to a Code Injection vulnerability in SAP NetWeaver Application Server Java (Web Dynpro Java), an unauthent

Routine

MEDIUM 6.1DOWNGRADE

CVE-2026-27674 is a medium-severity flaw (CVSS 6.1) affecting netweaver application server java. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Due to a Code Injection vulnerability in SAP NetWeaver Application Server Java (Web Dynpro Java), an unauthenticated attacker could supply crafted input that is interpreted by the application and causes it to reference attacker-controlled content. If a victim accesses the affected functionality, that attacker-controlled content could be executed in the victim�s browser, potentially resulting in session compromise. This could allow the attacker to

Why this priority

No elevated risk signals yet

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	6.1 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	Required
EPSS exploit chance	0.2% (top 91%)
CISA exploited list	No
Weakness	CWE-94
Published	2026-04-14
Last modified	2026-10-26

Publisher (CNA): SAP SE · Vendor: sap

Last updated 2026-10-26 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-04-14 00:16 UTCPublished CVE record published
2026-10-26 21:10 UTCUpdated Record last modified

sap netweaver application server java DOWNGRADE

Affected: 7.50

Fixed in: no fixed release known

Safe to downgrade to: a release before 7.50

1. Check installed version

apt-cache policy netweaver-application-server-java || rpm -q netweaver-application-server-java || netweaver-application-server-java --version

2. No fixed release: DOWNGRADE to a release before 7.50 (Debian / Ubuntu)

apt-cache madison netweaver-application-server-java sudo apt install netweaver-application-server-java=<VERSION_BEFORE_7.50> sudo apt-mark hold netweaver-application-server-java

2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list netweaver-application-server-java sudo dnf downgrade netweaver-application-server-java-<VERSION_BEFORE_7.50> sudo dnf versionlock add netweaver-application-server-java

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2026-27674?

netweaver application server java: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2026-27674 being exploited?

CVE-2026-27674 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2026-27674 affect?

CVE-2026-27674 affects netweaver application server java. Severity is medium (CVSS 6.1). Due to a Code Injection vulnerability in SAP NetWeaver Application Server Java (Web Dynpro Java), an unauthenticated attacker could supply crafted input that is interpreted by the application and causes it to reference attacker-controlled c

How urgent is CVE-2026-27674?

Priority 24/100. No elevated risk signals yet.

Software pages

Java vulnerabilities · SAP vulnerabilities

References

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