CVE-2026-64654Network attack vector

Terminal manipulation via unsanitized external content

Published Aug 6, 2026 · Updated Aug 6, 2026

Terminal escape injection in GitHub CLI before 2.97.0 allows attackers to manipulate terminal output or execute commands via crafted content. Affected command paths copy attacker-influenced raw bodies, diffs, assets, logs, skill files, and task streams to standard output or a pager without neutralizing escape sequences. Exploitation requires a user to run an affected command and a terminal emulator that interprets the injected sequence; consequences range from display manipulation to command execution.

CVSS severity5.3
Medium
EPSS probability0.75%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Terminal escape injection in GitHub CLI before 2.97.0 allows attackers to manipulate terminal output or execute commands via crafted content. Affected command paths copy attacker-influenced raw bodies, diffs, assets, logs, skill files, and task streams to standard output or a pager without neutralizing escape sequences. Exploitation requires a user to run an affected command and a terminal emulator that interprets the injected sequence; consequences range from display manipulation to command execution.

The record

CVE
CVE-2026-64654
Published
Aug 6, 2026
Updated
Aug 6, 2026
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-150, T1204
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Aug 6, 2026CVE publishedPublication date reported by the CVE source.
  2. Aug 6, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

5.1GitHub Security AdvisoryCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N
5.3GitHub CNACVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-150Improper Neutralization of Escape, Meta, or Control Sequences
T1204User Execution

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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