CVE-2026-27682: Due to a reflected cross-site scripting (XSS) vulnerability in SAP NetWeaver Application Server ABAP (Applicat

Routine

MEDIUM 4.7DOWNGRADE

CVE-2026-27682 is a medium-severity flaw (CVSS 4.7) affecting netweaver application server abap. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Due to a reflected cross-site scripting (XSS) vulnerability in SAP NetWeaver Application Server ABAP (Applications based on Business Server Pages), an unauthenticated attacker could craft a URL that exploits an unprotected URL parameter to embed a malicious script. If a victim clicks the link, the injected input is processed during web page generation, resulting in the execution of malicious content in the victim�s browser context. This could all

Why this priority

No elevated risk signals yet

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

Risk facts

CVSS score	4.7 (Medium)
Attack vector	Network (remote)
Attack complexity	High
Privileges needed	None
User interaction	Required
EPSS exploit chance	0.2% (top 87%)
CISA exploited list	No
Weakness	CWE-79
Published	2026-05-12
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

2026-05-12 03:16 UTCPublished CVE record published
2026-10-26 18:10 UTCUpdated Record last modified

sap netweaver application server abap DOWNGRADE

Affected: 700 · 701 · 702 · 731 · 740 · 750 · 751 · 752

Fixed in: no fixed release known

Safe to downgrade to: a release before 700

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 700 (Debian / Ubuntu)

apt-cache madison netweaver-application-server-abap sudo apt install netweaver-application-server-abap=<VERSION_BEFORE_700> sudo apt-mark hold netweaver-application-server-abap

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

dnf --showduplicates list netweaver-application-server-abap sudo dnf downgrade netweaver-application-server-abap-<VERSION_BEFORE_700> sudo dnf versionlock add netweaver-application-server-abap

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-2026-27682?

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

Is CVE-2026-27682 being exploited?

CVE-2026-27682 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-2026-27682 affect?

CVE-2026-27682 affects netweaver application server abap. Severity is medium (CVSS 4.7). Due to a reflected cross-site scripting (XSS) vulnerability in SAP NetWeaver Application Server ABAP (Applications based on Business Server Pages), an unauthenticated attacker could craft a URL that exploits an unprotected URL parameter to

How urgent is CVE-2026-27682?

Priority 20/100. No elevated risk signals yet.

Software pages

SAP vulnerabilities

Related CVEs

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CVE-2026-40135 MEDIUM 6.5 DOWNGRADE An OS Command Injection vulnerability exists in the SAP NetWeaver Application Server for ABAP and ABAP Platfor
CVE-2026-27680 LOW 3.1 DOWNGRADE Due to improper input handling under certain conditions, SAP NetWeaver Application Server ABAP allows an attac

References

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