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No exploitation reportedFix available

CVE-2016-9579

No exploitation reported by the sources we read.

  • Published2018-08-01
  • WeaknessCWE-20

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

A flaw was found in the way Ceph Object Gateway would process cross-origin HTTP requests if the CORS policy was set to allow origin on a bucket. A remote unauthenticated attacker could use this flaw to cause denial of service by sending a specially-crafted cross-origin HTTP request. Ceph branches 1.3.x and 2.x are affected.

Timeline

dates in UTC
  1. 2018-08-0116:29CVE publishedNVD

Observed activity

isMalicious corpus · updated 2026-11-04 09:37 UTC
Indicators tagged with this CVE, per day0 indicators over 7 days
Block these indicators
  • Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2016-9579?format=txt
  • CSV export: https://api.ismalicious.com/edl/cve/CVE-2016-9579?format=csv
  • TAXII collection of exploited CVEs
  • The EDL and CSV take an API key on the Pro plan.

Versions per branch

NVD
Redhat ceph storageversion to verify
BranchAffectedFixed in
1.3= 1.3no fix published
2.0= 2.0no fix published
Redhat ceph storage mon
BranchAffectedFixed in
1.3= 1.3no fix published
2.x= 2no fix published
Redhat ceph storage osd
BranchAffectedFixed in
1.3= 1.3no fix published
2.x= 2no fix published

3 more products in the sources.

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Distribution builds and vendor advisories

Packages from OSV.dev and products from the vendors' CSAF advisories.

version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.

Packages

  • cephUbuntu:14.04:LTSall versions · fixed in 0.80.11-0ubuntu1.14.04.3
  • cephSUSE:Enterprise Storage 4all versions · fixed in 10.2.6+git.1490339825.57146d8-11.7and 1 other package
  • cephSUSE:Enterprise Storage 3all versions · fixed in 10.2.10+git.1510313171.6d5f0aeac1-13.7.3
  • cephRed Hat:ceph_storage:2::el7all versions · fixed in 1:10.2.3-17.el7cpand 22 other packages
  • cephRed Hat:ceph_storage:1.3::el7all versions · fixed in 1:0.94.9-9.el7cpand 13 other packages
  • cephDebian:14all versions · fixed in 10.2.5-2
  • cephDebian:13all versions · fixed in 10.2.5-2
  • cephDebian:12all versions · fixed in 10.2.5-2

1 more package range on OSV.dev

Vendor advisories

  • CVE-2016-9579 Red Hat Product Security95 products fixed

    ceph: Object Gateway server DoS by sending invalid cross-origin HTTP request

  • RHSA-2016:2995 Red Hat Product Security1 product fixed

    Red Hat Security Advisory: Red Hat Ceph Storage 1.3 security and bug fix update

  • RHSA-2016:2994 Red Hat Product Security37 products fixed

    Red Hat Security Advisory: Red Hat Ceph Storage 1.3 security update

  • RHSA-2016:2956 Red Hat Product Security1 product fixed

    Red Hat Security Advisory: Red Hat Ceph Storage 2.1 security and bug fix update

  • RHSA-2016:2954 Red Hat Product Security56 products fixed

    Red Hat Security Advisory: Red Hat Ceph Storage 2.1 security and bug fix update

Full record on NVD

Fix

  1. Vendor fix Red Hat Product Security RHSA-2016:2995 · 1 productFor details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258

Advisories and patches

Detection

Nuclei template
none so far
ProjectDiscovery
Exploit-DB
no entry
Exploit-DB
Proof-of-concept repositories
none listed
PoC-in-GitHub
Metasploit modules
none listed
Metasploit Framework

Sources

  • CNACVSS 3.06.5known since 2026-10-23
  • NVDCVSS 3.07.5read 2026-10-23
  • NVDCVSS 2.05read 2026-10-23
  • CNAweakness (CWE)CWE-20known since 2026-10-23
  • NVDweakness (CWE)CWE-20read 2026-10-23
  • FIRST EPSSEPSS score4.3 %2026-11-03
  • OSVaffected packages—

Identifiers

Technical details

CVSS v3 Vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Published
2018-08-01
Last Modified
2026-06-17
NVD status
Modified

Frequently asked questions

What is CVE-2016-9579?

A flaw was found in the way Ceph Object Gateway would process cross-origin HTTP requests if the CORS policy was set to allow origin on a bucket. A remote unauthenticated attacker could use this flaw to cause denial of service by sending a specially-crafted cross-origin HTTP request. Ceph branches 1.3.x and 2.x are affected.

Is CVE-2016-9579 actively exploited?

Active exploitation of CVE-2016-9579 has not been confirmed. Its EPSS score was 4.3% on 2026-11-03, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2016-9579?

CVE-2016-9579 has a CVSS v3 base score of 7.5 (HIGH severity), with vector string CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

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