How severe is CVE-2026-47090?

CVE-2026-47090 has a CVSS 3.x base score of 4.6, rated medium severity. It is exploitable over local access with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2026-47090 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (1st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-47090?

CVE-2026-47090 affects Jarrodwatts Claude Hud. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-47090?

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

Does CVE-2026-47090 have an EU (EUVD) identifier?

Yes. CVE-2026-47090 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-30801.

When was CVE-2026-47090 published?

CVE-2026-47090 was published on 2026-05-18 and last updated on 2026-06-17.

CVE-2026-47090

CVE-2026-47090 is a medium-severity vulnerability in Jarrodwatts Claude Hud with a CVSS 3.x base score of 4.6. 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: Medium (CVSS 3.x base score 4.6)
CVSS v4: 2.4
EPSS exploit prediction: 0% (1st percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-30801
Weakness: CWE-150
Affected product: Jarrodwatts Claude Hud
Published: 2026-05-18
Last modified: 2026-06-17

Description

Claude HUD through 0.0.12, patched in commit 234d9aa, constructs OSC 8 terminal hyperlink escape sequences using raw cwd and branchUrl values without stripping control characters or encoding embedded values, allowing attackers to inject arbitrary ANSI codes into terminal sessions. Attackers can embed ESC+backslash sequences in the current working directory or branch URL to execute malicious ANSI codes including text color changes, forged prompts, and OSC 52 clipboard writes, or trigger outbound HTTP requests to attacker-controlled remotes when hyperlinks are clicked.

Frequently asked questions

What is CVE-2026-47090?: Claude HUD through 0.0.12, patched in commit 234d9aa, constructs OSC 8 terminal hyperlink escape sequences using raw cwd and branchUrl values without stripping control characters or encoding embedded values, allowing attackers to inject arbitrary ANSI codes into terminal sessions. Attackers can embed ESC+backslash sequences in the current working directory or branch URL to execute malicious ANSI codes including text color changes, forged prompts, and OSC 52 clipboard writes, or trigger outbound HTTP requests to attacker-controlled remotes when hyperlinks are clicked.
How severe is CVE-2026-47090?: CVE-2026-47090 has a CVSS 3.x base score of 4.6, rated medium severity. It is exploitable over local access with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2026-47090 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (1st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-47090?: CVE-2026-47090 affects Jarrodwatts Claude Hud. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-47090?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2026-47090 have an EU (EUVD) identifier?: Yes. CVE-2026-47090 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-30801.
When was CVE-2026-47090 published?: CVE-2026-47090 was published on 2026-05-18 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:jarrodwatts:claude_hud:*:*:*:*:*:claude_code:*:*

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