GHSA-cc77-5vw4-7pwg · Severity: medium · Ecosystem: pip — OpenStack Swift Unauthorized delete of versioned Swift object
OpenStack Object Storage (Swift) before 2.3.0, when allow_version is configured, allows remote authenticated users to delete the latest version of an object by leveraging listing access to the x-versions-location container.
Conclusion & alert: CVE-2015-1856 is rated Moderate Risk (56.2/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 3.95%). Core evidence: EPSS rose +3.08% over the last day, indicating growing attacker interest. Mandatory action: Review affected assets and schedule remediation.
Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.
EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).
| # | Date | Old EPSS score | New EPSS score | Delta (New - Old) |
|---|---|---|---|---|
| 1 | 2026-06-15 | 0.87% | 3.95% | +3.08% |
| 2 | 2026-05-13 | 1.03% | 0.87% | -0.16% |
| 3 | 2025-12-28 | — | 1.03% | — |
Full EPSS history (17 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 5.5 | 2.0 | MEDIUM |
|
8.0 | 4.9 | [email protected] |
GHSA-cc77-5vw4-7pwg · Severity: medium · Ecosystem: pip — OpenStack Swift Unauthorized delete of versioned Swift object
| vendor | priority | summary | link |
|---|---|---|---|
debian
|
not yet assigned | CVE-2015-1856 not yet assigned priority: Debian including 1 source packages (swift), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. | https://security-tracker.debian.org/tracker/CVE-2015-1856 |
redhat
|
medium | — | https://access.redhat.com/security/cve/CVE-2015-1856 |
ubuntu
|
medium | CVE-2015-1856 medium priority: Ubuntu including 1 source packages (swift), 6 status rows across 6 suites (lucid, precise, trusty, upstream, utopic, vivid): released 2, DNE 1, ignored 1, needs-triage 1, not-affected 1. | https://ubuntu.com/security/CVE-2015-1856 |
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| openstack | swift | <= 2.2.2 | cpe:2.3:a:openstack:swift:*:*:*:*:*:*:*:* |
| canonical | ubuntu_linux | 12.04 | cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:lts:*:*:* |
| canonical | ubuntu_linux | 14.04 | cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:* |
| canonical | ubuntu_linux | 15.04 | cpe:2.3:o:canonical:ubuntu_linux:15.04:*:*:*:*:*:*:* |