IBM Observability with Instana missing authentication
Priority HIGH 78CWE-306Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- High · High · None
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-306.
Summary
Docker based datastores for IBM Instana (IBM Observability with Instana 239-0 through 239-2, 241-0 through 241-2, and 243-0) do not currently require authentication. Due to this, an attacker within the network could access the datastores with read/write access. IBM X-Force ID: 248737.
Why it matters now
Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.08573 95th percentileScored 2026-11-07
Fix Fixed Observability with Instana (IBM): 239-2, 241-2
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- Automatable
- Yes
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| IBM | Observability with Instana | 239-0 to before 239-2; 241-0 to before 241-2; 243-0 | 239-2, 241-2 | Patch available | CNA |
- Observability with Instana VendorIBM Affected 239-0 to before 239-2; 241-0 to before 241-2; 243-0 Fixed in 239-2, 241-2 Patch available CNA
Remediation
- Fix · CNA Observability with Instana (IBM) Fixed in 239-2, 241-2
Timeline
- 2026-10-02 Threatist record created from CVE-2023-27290
- 2026-10-03 Alias added: GHSA-g98m-73rh-c5j6
- 2026-10-14 EPSS moved to the 95th–99th percentile
References
More IBM Observability With Instana vulnerabilities
- TI-2023-19022 IBM Observability with Instana code execution CVSS 3.1CRITICAL 9.8
Sources
- CVE-2023-27290 · CVE Program
- CVE-2023-27290 · NVD
- FIRST EPSS
- GHSA-g98m-73rh-c5j6 · GitHub Advisory Database · CC BY 4.0
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