Cloud Foundry Bits Service Release, versions prior to 2.14.0, uses an insecure hashing algorithm to sign URLs. A remote malicious user may obtain a signed URL and extract the signing key, allowing them complete read and write access to the the Bits Service storage.
CVE-2018-15796
HIGHNVD 8.18.1—
EchelonGraph scoreMEDIUM confidence
Score 8.1 from GitHub Security Advisory (severity: HIGH) published 2022-05-13. NVD baseline CVSS 8.1; sources differ by 0.0.
Triggered by: GitHub Security Advisory CVSS
Sources: ghsa, nvd
8.1
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
- High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 1%CVSS: 8.1Exploit: NoneExposed: 0
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- 8.1
- EG Score
- 8.1(medium)
- EPSS
- 49.2%
- KEV
- Not listed
Published
November 9, 2018
Last Modified
November 21, 2024
References (2)
- security_alert@emchttps://www.cloudfoundry.org/blog/cve-2018-15796
- af854a3a-2127-422b-91ae-364da2661108https://www.cloudfoundry.org/blog/cve-2018-15796
Frequently asked(5)
What is CVE-2018-15796?
CVE-2018-15796 is a high vulnerability published on November 9, 2018. Cloud Foundry Bits Service Release, versions prior to 2.14.0, uses an insecure hashing algorithm to sign URLs. A remote malicious user may obtain a signed URL and extract the signing key, allowing them complete read and write access to the the Bits Service storage.
When was CVE-2018-15796 disclosed?
CVE-2018-15796 was first published in the National Vulnerability Database on November 9, 2018, with the most recent update on November 21, 2024. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2018-15796 actively exploited?
CVE-2018-15796 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 49.2% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2018-15796?
CVE-2018-15796 has a CVSS v3 base score of 8.1 (NVD).
How do I remediate CVE-2018-15796?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2018-15796, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.
Dependency Blast Radius
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