How severe is CVE-2026-100867?

CVE-2026-100867 has a CVSS 3.x base score of 3.3, rated low severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is none, integrity low, and availability none.

Is CVE-2026-100867 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (2nd percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2026-100867?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2026-100867 published?

CVE-2026-100867 was published on 2026-09-27 and last updated on 2026-09-30.

CVE-2026-100867

CVE-2026-100867 is a low-severity vulnerability with a CVSS 3.x base score of 3.3. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-150.

Key facts

Severity: Low (CVSS 3.x base score 3.3)
CVSS v4: 4.8
EPSS exploit prediction: 0% (2nd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-150
Published: 2026-09-27
Last modified: 2026-09-30

Description

spaceship-prompt through 4.22.5 fails to sanitize control characters from project manifest version fields before rendering them in the zsh prompt. Attackers can embed ANSI/OSC escape sequences in version fields of package manifests to manipulate terminal output, rewrite window titles, or spoof displayed text when victims enter the directory.

Frequently asked questions

What is CVE-2026-100867?: spaceship-prompt through 4.22.5 fails to sanitize control characters from project manifest version fields before rendering them in the zsh prompt. Attackers can embed ANSI/OSC escape sequences in version fields of package manifests to manipulate terminal output, rewrite window titles, or spoof displayed text when victims enter the directory.
How severe is CVE-2026-100867?: CVE-2026-100867 has a CVSS 3.x base score of 3.3, rated low severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is none, integrity low, and availability none.
Is CVE-2026-100867 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (2nd percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2026-100867?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2026-100867 published?: CVE-2026-100867 was published on 2026-09-27 and last updated on 2026-09-30.

References

Other CWE-150 vulnerabilities

CVE-2022-30123 — Critical (CVSS 10.0): A sequence injection vulnerability exists in Rack <2.0.9.1, <2.1.4.1 and <2.2.3.1 which could allow is a possible shell…
CVE-2020-6932 — Critical (CVSS 10.0): An information disclosure and remote code execution vulnerability in the slinger web server of the BlackBerry QNX…
CVE-2025-47284 — Critical (CVSS 9.9): Gardener implements the automated management and operation of Kubernetes clusters as a service. A security…
CVE-2023-26055 — Critical (CVSS 9.9): XWiki Commons are technical libraries common to several other top level XWiki projects. Starting in version…
CVE-2026-25996 — Critical (CVSS 9.8): Inspektor Gadget is a set of tools and framework for data collection and system inspection on Kubernetes clusters and…
CVE-2025-25286 — Critical (CVSS 9.8): Crayfish is a collection of Islandora 8 microservices, one of which, Homarus, provides FFmpeg as a microservice. Prior…

Browse all CWE-150 vulnerabilities →