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CVE-2023-37579

19
FAUCET Score

CVE-2023-37579 is an Incorrect Authorization vulnerability affecting Apache Pulsar Function Worker versions prior to 2.10.4 and 2.11.0. An authenticated user can retrieve source or sink configurations, potentially leaking credentials, though exploitation requires guessing the resource name. This vulnerability has a CVSS score of 6.5 (Medium), indicating a network attack vector with low complexity and high confidentiality impact. There is currently no known active exploitation, public exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
< 2.10.4CPE matchmatch criteria
cpe:2.3:a:apache:pulsar:*:*:*:*:*:*:*:*
2.11.0CPE matchmatch criteria
cpe:2.3:a:apache:pulsar:2.11.0:-:*:*:*:*:*:*
2.11.0CPE matchmatch criteria
cpe:2.3:a:apache:pulsar:2.11.0:candidate_1:*:*:*:*:*:*
2.11.0CPE matchmatch criteria
cpe:2.3:a:apache:pulsar:2.11.0:candidate_5:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

8.2HIGH

CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:N

Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
LOW
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
NONE
Exploitability Score
1.8
Impact Score
5.8
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.82%
Probability of exploitation in next 30 days
EPSS Percentile
53.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0082 is in the 65th percentile among its peer group of 21,974 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 (2)

mavenpatch availablevia ghsa
Product: org.apache.pulsar:pulsar-functions-workerFixed in: 2.10.4
mavenpatch availablevia ghsa
Product: org.apache.pulsar:pulsar-functions-workerFixed in: 2.11.1

Vendor Advisories (1)

mavenGHSA-74mc-g2xv-pch2medium

Apache Pulsar Function Worker Incorrect Authorization vulnerability

Jul 12, 2023

References

lists.apache.org / thread/0dmn3cb5n2p08o3cpj3ycfhzfqs2ppwz
Mailing ListVendor Advisory