CRLF injection vulnerability in the Ceph Object Gateway (aka radosgw or RGW) in Ceph before 0.94.4 allows remote attackers to inject arbitrary HTTP headers and conduct HTTP response splitting attacks via a crafted bucket name.
Conclusion & alert: CVE-2015-5245 is rated Moderate Risk (45.7/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 1.91%). Core evidence: EPSS rose +1.55% 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 | 0.36% | 1.91% | +1.55% |
| 2 | 2025-07-14 | 0.25% | 0.36% | +0.11% |
| 3 | 2025-06-29 | — | 0.25% | — |
Full EPSS history (8 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 4.3 | 2.0 | MEDIUM |
|
8.6 | 2.9 | [email protected] |
| vendor | priority | summary | link |
|---|---|---|---|
debian
|
not yet assigned | CVE-2015-5245 not yet assigned priority: Debian including 1 source packages (ceph), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. | https://security-tracker.debian.org/tracker/CVE-2015-5245 |
redhat
|
medium | — | https://access.redhat.com/security/cve/CVE-2015-5245 |
ubuntu
|
low | CVE-2015-5245 low priority: Ubuntu including 1 source packages (ceph), 16 status rows across 16 suites (artful, bionic, cosmic, disco, eoan, focal, groovy, hirsute, precise, trusty, upstream, vivid, wily, xenial, yakkety, zesty): not-affected 12, ignored 3, needs-triage 1. | https://ubuntu.com/security/CVE-2015-5245 |
: <a href="http://cwe.mitre.org/data/definitions/113.html">CWE-113: Improper Neutralization of CRLF Sequences in HTTP Headers ('HTTP Response Splitting')</a>