CVE-2026-34257Network attack vector

Victim redirection via crafted malicious URL

Published Apr 14, 2026 · Updated Apr 14, 2026

Open redirect in SAP NetWeaver Application Server ABAP allows remote attackers to redirect victims to attacker-controlled pages via crafted links. SAP has not disclosed the affected endpoint or the validation error that permits an attacker-supplied destination to control the redirect. Exploitation requires a victim to access the crafted URL; the bounded consequence is redirection to an untrusted page, with low confidentiality and integrity impact and no service interruption.

CVSS severity6.1
Medium
EPSS probability0.15%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Open redirect in SAP NetWeaver Application Server ABAP allows remote attackers to redirect victims to attacker-controlled pages via crafted links. SAP has not disclosed the affected endpoint or the validation error that permits an attacker-supplied destination to control the redirect. Exploitation requires a victim to access the crafted URL; the bounded consequence is redirection to an untrusted page, with low confidentiality and integrity impact and no service interruption.

The record

CVE
CVE-2026-34257
Published
Apr 14, 2026
Updated
Apr 14, 2026
Vendor
cap-js
Product
SAP NetWeaver Application Server ABAP
Classifications
CWE-601, CAPEC-178, T1204.001
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Apr 14, 2026CVE publishedPublication date reported by the CVE source.
  2. Apr 14, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=SAP_BASIS 700
  2. Affected versionversion=SAP_BASIS 701
  3. Affected versionversion=SAP_BASIS 702
  4. Affected versionversion=SAP_BASIS 731
  5. Affected versionversion=SAP_BASIS 740
  6. Affected versionversion=SAP_BASIS 750
  7. Affected versionversion=SAP_BASIS 752
  8. Affected versionversion=SAP_BASIS 753
  9. Affected versionversion=SAP_BASIS 754
  10. Affected versionversion=SAP_BASIS 755
  11. Affected versionversion=SAP_BASIS 756
  12. Affected versionversion=SAP_BASIS 757
  13. Affected versionversion=SAP_BASIS 758
  14. Affected versionversion=SAP_BASIS 816

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

cap-js · SAP NetWeaver Application Server ABAPversion=SAP_BASIS 700; version=SAP_BASIS 701; version=SAP_BASIS 702; version=SAP_BASIS 731; version=SAP_BASIS 740; version=SAP_BASIS 750; version=SAP_BASIS 752; version=SAP_BASIS 753; version=SAP_BASIS 754; version=SAP_BASIS 755; version=SAP_BASIS 756; version=SAP_BASIS 757; version=SAP_BASIS 758; version=SAP_BASIS 816

Published CVSS scores

6.1SAP SECVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-601URL Redirection to Untrusted Site ('Open Redirect')
CAPEC-178Cross-Site Flashing
T1204.001User Execution: Malicious Link

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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