CVE-2026-47157 aiograpi: Unsafe signup challenge path handling

Medium 6.5 Published Updated

Attackers can force the library to send requests to arbitrary hosts with session headers by manipulating challenge paths, potentially leaking data or bypassing security controls.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Local or same network only
Victim action needed
Not needed
Fix
Available

What is CVE-2026-47157?

CVE-2026-47157 is a medium-severity server-side request forgery vulnerability in subzeroid aiograpi, published on 11 Jun 2026. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

aiograpi is an asynchronous Instagram API for Python. aiograpi versions before 0.9.10 accepted server-supplied signup challenge paths and used them to build request URLs before validating that the paths were relative Instagram API paths. If an attacker can influence a challenge response, for example through a local network, DNS, or proxy compromise, challenge handling requests could be sent outside the intended Instagram host with the client's existing session headers. Version 0.9.10 validates challenge paths before building URLs, solving captcha challenges, or submitting phone/SMS challenge forms.

Weakness: CWE-918

Which versions are affected by CVE-2026-47157?

3 open source packages ship an affected version, including aiograpi.

PackageAffectedFixed in
aiograpi PyPIAll versions0.9.10
aiograpi PyPIAll versions0.9.10
aiograpi PyPIAll versions0.9.10

How do I fix CVE-2026-47157?

Upgrade aiograpi to 0.9.10 or later.

Upgrade, and send outbound requests through an allow-list that blocks internal addresses. More about Server-side request forgery.

Is CVE-2026-47157 being exploited?

There is no known exploitation of CVE-2026-47157 in the wild and no public exploit code.

Sources

Also known as GHSA-jh37-x3fv-4x72, PYSEC-2026-2337.

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