EUVD-2026-94997
GHSA-4cw5-qg45-7q65
Severity by source
AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
Network-reachable, low-complexity signature bypass needing only low-privilege auth (PR:L); grants unauthorized data access and integrity impact with no availability effect, scope unchanged.
Primary rating from Vendor (ibm).
CVSS VectorVendor: ibm
Lifecycle Timeline
2DescriptionCVE.org
IBM DataPower Gateway 10.5.0.0 through 10.5.0.22, 10.6.1 through 10.6.6, 10.6.0.0 through 10.6.0.10, and 11.0.0.0 through 11.0.0.2 could allow a remote authenticated attacker to bypass security restrictions due to improper verification of cryptographic signatures.
AnalysisAI
Security-restriction bypass in IBM DataPower Gateway 10.5.0.0 through 10.5.0.22, 10.6.0.0 through 10.6.0.10, 10.6.1 through 10.6.6, and 11.0.0.0 through 11.0.0.2 allows a remote authenticated attacker to have forged or tampered cryptographic signatures accepted by the gateway, defeating the trust checks those signatures are meant to enforce. Per the assessed vector (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N, 8.1), the attacker must already hold valid low-privilege credentials and have network reachability to the gateway, but no user interaction is required, and successful exploitation yields high confidentiality and integrity impact with no availability effect. …
Unlock full vulnerability intelligence
- Risk assessment & exploitation conditions
- Attack chain visualization
- Remediation with exact patch versions
- Threat intelligence from 22 sources
- Personal watchlist & email alerts
No credit card · 7-day full trial
Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires the attacker to already possess valid low-privilege authentication to the DataPower Gateway (CVSS PR:L) and network reachability to the gateway's management or service interface (AV:N). … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | This is a credible high-severity issue warranting prompt patching in affected environments, though not a drop-everything emergency. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | Full exploit scenario with step-by-step reproduction available after sign-in. |
| Remediation | Patch available per vendor advisory: IBM has published remediation guidance and fixed firmware for all affected trains in its security bulletin at https://www.ibm.com/support/pages/node/7289775, and administrators should apply the update listed there for whichever branch they run (10.5.0.x, 10.6.0.x, 10.6.1-10.6.6 / 10.6 CD, or 11.0.0.x) rather than assuming a cross-branch upgrade path. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours, identify every IBM DataPower Gateway instance across the estate and confirm which fall in the affected ranges: 10.5.0.0 through 10.5.0.22, 10.6.0.0 through 10.6.0.10, 10.6.1 through 10.6.6, and 11.0.0.0 through 11.0.0.2; validate that each appliance's administrative and API interfaces are not internet-exposed, review and prune low-privilege and service accounts to the minimum necessary, and enable or tighten logging and alerting on signature-validation failures and authentication anomalies so any attempted exploitation is detectable. …
Sign in for detailed remediation steps and compensating controls.
Threat intelligence, references, and detailed analysis are available after sign-in.
More in Jwt Attack
View allWhy is Microsoft republishing a CVE from 2013? We are republishing CVE-2013-3900 in the Security Update Guide to update
Authentication bypass in SimpleHelp 5.5.15 and prior (plus 6.0 pre-release builds) allows remote unauthenticated attacke
Authentication bypass in WSO2 API Manager and related components (Universal Gateway, Traffic Manager, API Control Plane,
Authentication bypass in Fortinet FortiOS, FortiProxy, and FortiSwitchManager allows unauthenticated remote attackers to
ruby-saml provides security assertion markup language (SAML) single sign-on (SSO) for Ruby. Rated critical severity (CVS
ruby-saml provides security assertion markup language (SAML) single sign-on (SSO) for Ruby. Rated critical severity (CVS
The package jsrsasign before 10.5.25 are vulnerable to Improper Verification of Cryptographic Signature when JWS or JWT
A library injection vulnerability exists in Microsoft Teams (work or school) 24046.2813.2770.1094 for macOS. Rated criti
A library injection vulnerability exists in the WebView.app helper app of Microsoft Teams (work or school) 24046.2813.27
A library injection vulnerability exists in the com.microsoft.teams2.modulehost.app helper app of Microsoft Teams (work
The Ruby SAML library is for implementing the client side of a SAML authorization. Rated critical severity (CVSS 9.8), t
cosign is a container signing and verification utility. Rated critical severity (CVSS 9.8), this vulnerability is remote
Same technique Authentication Bypass
View allShare
External POC / Exploit Code
Leaving vuln.today