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CVE-2023-28628

21
FAUCET Score

CVE-2023-28628 is a medium-severity vulnerability affecting the lambdaisland/uri Clojure/ClojureScript library prior to version 1.14.120. It allows an attacker to craft malicious URLs that cause the library to misidentify the host due to improper handling of backslashes in the username, potentially leading to host restriction bypasses. The CVSS score is 6.1 (MEDIUM), indicating a network-based attack with low complexity, requiring user interaction, and resulting in low confidentiality and integrity impacts. There is currently no evidence of active exploitation, public exploit code, or significant community discussion surrounding this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
< 1.14.120CPE matchmatch criteria
cpe:2.3:a:lambdaisland:uri:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

5.4MEDIUM

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
LOW
Integrity Impact
LOW
Availability Impact
NONE
Exploitability Score
2.8
Impact Score
2.5
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.55%
Probability of exploitation in next 30 days
EPSS Percentile
42.9%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0055 is in the 45th percentile among its peer group of 26,236 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 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (4)

github_advisorypatch availablevia nvd_reference
View patch
mavenpatch availablevia ghsa
Product: lambdaisland:uriFixed in: 1.14.120
ubuntupatch availablevia ubuntu_usn
Product: lambdaisland-uri-clojure (jammy)Fixed in: 1.13.95-2ubuntu0.22.04.1~esm1
ubuntupatch availablevia ubuntu_usn
Product: lambdaisland-uri-clojure (noble)Fixed in: 1.13.95-2ubuntu0.24.04.1~esm2

Vendor Advisories (2)

ubuntuUSN-8151-1

lambdaisland/uri vulnerability

Apr 6, 2026
mavenGHSA-cp4w-6x4w-v2h5medium

lambdaisland/uri `authority-regex` returns the wrong authority

Mar 27, 2023

References

github.com / lambdaisland/uri/commit/f46db3e84846f79e14bfee0101d9c7a872321820
Patch
github.com / lambdaisland/uri/security/advisories/GHSA-cp4w-6x4w-v2h5
ExploitVendor Advisory