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CVE-2023-27476

23
FAUCET Score

CVE-2023-27476 is a high-severity vulnerability affecting OWSLib, a Python package for OGC web service client programming. The vulnerability, categorized as CWE-611, stems from the XML parser's failure to disable entity resolution, allowing arbitrary file reads via attacker-controlled XML payloads. This issue carries a CVSS score of 7.5 (HIGH) due to its network-based attack vector, low attack complexity, and high impact on confidentiality, with no integrity or availability impact. There is currently no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
< 0.28.1CPE matchmatch criteria
cpe:2.3:a:osgeo:owslib:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

8.2HIGH

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
LOW
Exploitability Score
3.9
Impact Score
4.2
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.98%
Probability of exploitation in next 30 days
EPSS Percentile
58.7%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0098 is in the 34th percentile among its peer group of 51,506 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 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 (6)

github_advisorypatch availablevia nvd_reference
View patch
pippatch availablevia ghsa
Product: OWSLibFixed in: 0.28.1
ubuntupatch availablevia ubuntu_usn
Product: owslib (bionic)Fixed in: 0.16.0-1ubuntu0.1~esm1
ubuntupatch availablevia ubuntu_usn
Product: owslib (focal)Fixed in: 0.19.1-1ubuntu0.1~esm1
ubuntupatch availablevia ubuntu_usn
Product: owslib (jammy)Fixed in: 0.25.0-1ubuntu0.1~esm1
ubuntupatch availablevia ubuntu_usn
Product: owslib (xenial)Fixed in: 0.10.3-1ubuntu0.1~esm1

Vendor Advisories (2)

ubuntuUSN-8247-1

OWSLib vulnerability

May 7, 2026
pipGHSA-8h9c-r582-mggchigh

OWSLib vulnerable to XML External Entity (XXE) Injection

Mar 7, 2023

References

github.com / geopython/OWSLib/pull/863/commits/b92687702be9576c0681bb11cad21eb631b9122f
Patch
github.com / geopython/OWSLib/security/advisories/GHSA-8h9c-r582-mggc
Vendor Advisory
lists.debian.org / debian-lts-announce/2023/06/msg00032.html
securitylab.github.com / advisories/GHSL-2022-131_owslib
Broken Link
debian.org / security/2023/dsa-5426