CVE-2026-55453

Exploitation

Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.

SSVC decision

• ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
• AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
• 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

0.19% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 9.0% of scored records. A rank, not a probability.

NVD base score

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

NVD CVSS vector

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

NVD analysis status

Analyzed. NVD last modified this record on 2026-10-20.

Red Hat severity

Important. Red Hat's rating for its own products, not a CVSS rating.

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

2026-10-15 17:11Z13 DAYS AGO

Last updated

2026-10-16 17:12Z12 DAYS AGO

Reserved

2026-06-16

Assigning CNA

GitHub_M

Record state

PUBLISHED

Severity

Low (CVSS 3.3)

CNA CVSS vector

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

Weaknesses

• CWE-74Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')Class
• CWE-77Improper Neutralization of Special Elements used in a Command ('Command Injection')Class
• CWE-78Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')Base
• CWE-93Improper Neutralization of CRLF Sequences ('CRLF Injection')Base

Data version

5.2

Document digest

da2cb7add33bf757410eca0991d96a14f1cb817efbb639814670f15af5bd5a6a

• github.comhttps://github.com/OpenPrinting/cups/security/advisories/GHSA-7hqf-mfhx-7r3vx_refsource_CONFIRM
• github.comhttps://github.com/OpenPrinting/cups/commit/806e1b483096c51d59432468f4afdd7387d81dd7x_refsource_MISC
• github.comhttps://github.com/OpenPrinting/cups/commit/d41cf0616688721e9d435d54118c4c8a36ed596ax_refsource_MISC
• github.comhttps://github.com/OpenPrinting/cups/releases/tag/v2.4.20x_refsource_MISC