What’s Vulnerable › Vulnerabilities

CVE-2021-26917

• Severity: medium (CVSS 5.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.5% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2021-02-08 · updated 2026-06-17

Description

PyBitmessage through 0.6.3.2 allows attackers to write screen captures to Potentially Unwanted Directories via a crafted apinotifypath value. NOTE: the discoverer states "security mitigation may not be necessary as there is no evidence yet that these screen intercepts are actually transported away from the local host." NOTE: it is unclear whether there are any common use cases in which apinotifypath is controlled by an attacker

Affected products

• Bitmessage Pybitmessage: through 0.6.3.2

References

• https://attack.mitre.org/techniques/T1113/
• https://github.com/Bitmessage/PyBitmessage/blob/f381721bec31641002e2f240309600c4994855a7/src/api.py#L35-L37
• https://github.com/Bitmessage/PyBitmessage/releases
• https://poal.co/s/technology/290479
• https://attack.mitre.org/techniques/T1113/
• https://github.com/Bitmessage/PyBitmessage/blob/f381721bec31641002e2f240309600c4994855a7/src/api.py#L35-L37
• https://github.com/Bitmessage/PyBitmessage/releases
• https://poal.co/s/technology/290479

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