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CVE-2011-5097

19
FAUCET Score

CVE-2011-5097 describes an authorization bypass vulnerability in Chef Server versions prior to 0.9.18 and 0.10.2. Authenticated users, without administrative privileges, could upload or delete cookbooks using the knife command-line tool. This vulnerability has a CVSS score of 5.5, indicating a medium severity, as it requires authentication but has low attack complexity, potentially leading to data integrity and availability impacts. There is no evidence of active exploitation, public exploit code, or significant community discussion surrounding this decade-old vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
<= 0.9.16CPE matchmatch criteria
cpe:2.3:a:opscode:chef:*:*:*:*:*:*:*:*
0.7.2CPE matchmatch criteria
cpe:2.3:a:opscode:chef:0.7.2:*:*:*:*:*:*:*
0.7.4CPE matchmatch criteria
cpe:2.3:a:opscode:chef:0.7.4:*:*:*:*:*:*:*
0.7.6CPE matchmatch criteria
cpe:2.3:a:opscode:chef:0.7.6:*:*:*:*:*:*:*
0.7.8CPE matchmatch criteria
cpe:2.3:a:opscode:chef:0.7.8:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

5.5MEDIUM

AV:N/AC:L/Au:S/C:N/I:P/A:P

Confidentiality Impact
NONE
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
Access Vector
NETWORK
Access Complexity
LOW
Authentication
SINGLE
Exploitability Score
8.0
Impact Score
4.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
1.42%
Probability of exploitation in next 30 days
EPSS Percentile
70.1%
Percentile rank of EPSS score among Peer Group
As of 2026-07-24
Model: v2026.06.15
This CVE's current EPSS score of 0.0142 is in the 84th percentile among its peer group of 21,939 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (1)

github_advisorypatch availablevia nvd_reference
View patch

References

github.com / opscode/chef/commit/a4ea6edab2fecb922f999cffb0daa04eeeec7a26
Patch
tickets.opscode.com / browse/CHEF-2436