How severe is CVE-2018-15796?

CVE-2018-15796 has a CVSS 3.x base score of 8.1, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability none.

Is CVE-2018-15796 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (49th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-15796?

CVE-2018-15796 affects Pivotal Software Bits Service. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2018-15796?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2018-15796 published?

CVE-2018-15796 was published on 2018-11-09 and last updated on 2026-06-17.

CVE-2018-15796

CVE-2018-15796 is a high-severity vulnerability in Pivotal Software Bits Service with a CVSS 3.x base score of 8.1. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-326.

Key facts

Severity: High (CVSS 3.x base score 8.1)
CVSS v2: 5.5
EPSS exploit prediction: 1% (49th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-326
Affected product: Pivotal Software Bits Service
Published: 2018-11-09
Last modified: 2026-06-17

Description

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.

Frequently asked questions

What is CVE-2018-15796?: 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.
How severe is CVE-2018-15796?: CVE-2018-15796 has a CVSS 3.x base score of 8.1, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability none.
Is CVE-2018-15796 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (49th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-15796?: CVE-2018-15796 affects Pivotal Software Bits Service. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2018-15796?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2018-15796 published?: CVE-2018-15796 was published on 2018-11-09 and last updated on 2026-06-17.

References

https://www.cloudfoundry.org/blog/cve-2018-15796

Affected products (1)

cpe:2.3:a:pivotal_software:bits_service:*:*:*:*:*:*:*:*

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