CVE-2023-41889

Exploitation

Public exploit code exists. CISA's assessment records a public proof of concept. That is not a report of exploitation in the wild.

SSVC decision

• ExploitationpocPublic proof-of-concept exploit code exists. Not a report of exploitation in the wild.
• AutomatableyesAn attacker can reliably automate reconnaissance through exploitation, so this scales.
• Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.

CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.

EPSS probability

0.70% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 52.8% of scored records. A rank, not a probability.

NVD base score

5.3 (CVSS v3.x), scored by the NVD independently of the CNA.

NVD CVSS vector

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

NVD analysis status

Modified. NVD last modified this record on 2026-06-17.

Red Hat severity

No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

Published

2023-09-15 20:09Z3 YR AGO

Last updated

2024-09-25 18:54Z2 YR AGO

Reserved

2023-09-04

Assigning CNA

GitHub_M

Record state

PUBLISHED

Severity

Medium (CVSS 5.3)

CNA CVSS vector

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

Weaknesses

• CWE-176Improper Handling of Unicode EncodingVariant
• CWE-116Improper Encoding or Escaping of OutputClass

Data version

5.1

Document digest

a170c10f6c25cb5e093773477a55291da30a67146d386431789ebbf0c6420490

• github.comhttps://github.com/shirasagi/shirasagi/security/advisories/GHSA-xr45-c2jv-2v9rx_refsource_CONFIRM
• github.comhttps://github.com/shirasagi/shirasagi/blob/f249ce3f06f6bfbc0017b38f5c13de424334c3ea/app/models/concerns/rdf/object.rb#L68-L72x_refsource_MISC
• sim4n6.beehiiv.comhttps://sim4n6.beehiiv.com/p/unicode-characters-bypass-security-checksx_refsource_MISC