Malicious code in reqcrypt (PyPI)
--- _-= Per source details. Do not edit below this line.=-_ ## Source: amazon-inspector (152e5cdb52328dccd4eb61462c930b56f456dbdf759f0ce3005da3a7ecf4b688) reqcrypt presents itself as a general-purpose HTTP client, but its internal PayloadProcessor unconditionally inspects every HTTP response for JSON keys named 'payloaddd', 'payload_gz', and 'payload_zlib', base64/gzip/zlib-decodes the associated values, and passes the decoded bytes to exec() inside the caller's Python process. This decode-and-exec path is wired into _process_response, which is invoked from every public verb (get/post/put/delete/patch/download/upload), so any server the caller contacts—or any network attacker able to tamper with a response—can push arbitrary Python code into the caller's process by adding one of those keys to a JSON body. In-source comments label the sinks as 'Hidden execution', and the behavior is not disclosed in the package's advertised API. Effect on any program using this library is a remote code execution channel driven by attacker-controlled or attacker-influenced HTTP responses. ## Source: kam193 (556f2178ed2505024fd91bc1c9c20b59d78783c27badd166a220493e5184fb39) The package contains a hidden backdoor. The promised functionality is an HTTP request library with some additional functions. On every usage, code secretly checks for the presence of specific fields in the response, and if they are found, their content is secretly executed. --- Category: MALICIOUS - The campaign has clearly malicious intent, like infostealers. Campaign: 2026-08-reqcrypt Reasons (based on the campaign): - backdoor
AI Analysis
Technical Summary
reqcrypt is a Python HTTP client library that unconditionally inspects every HTTP response for JSON keys named 'payloaddd', 'payload_gz', and 'payload_zlib'. It base64/gzip/zlib-decodes the associated values and executes the resulting code via exec() in the caller's process. This hidden backdoor is triggered on every HTTP verb method (get/post/put/delete/patch/download/upload), enabling remote code execution from attacker-controlled or attacker-influenced HTTP responses. The malicious behavior is undocumented and embedded in the package, representing a severe security risk.
Potential Impact
Any program using reqcrypt version 0.1.0 is vulnerable to remote code execution through attacker-controlled HTTP responses. This allows an attacker to execute arbitrary Python code within the context of the calling process, potentially leading to full system compromise or data theft.
Mitigation Recommendations
No official patch or remediation is currently available. Users should immediately stop using reqcrypt version 0.1.0 and remove it from their environments. Avoid using this package until a trustworthy, clean version is released or an official advisory provides remediation guidance.
Malicious code in reqcrypt (PyPI)
Description
--- _-= Per source details. Do not edit below this line.=-_ ## Source: amazon-inspector (152e5cdb52328dccd4eb61462c930b56f456dbdf759f0ce3005da3a7ecf4b688) reqcrypt presents itself as a general-purpose HTTP client, but its internal PayloadProcessor unconditionally inspects every HTTP response for JSON keys named 'payloaddd', 'payload_gz', and 'payload_zlib', base64/gzip/zlib-decodes the associated values, and passes the decoded bytes to exec() inside the caller's Python process. This decode-and-exec path is wired into _process_response, which is invoked from every public verb (get/post/put/delete/patch/download/upload), so any server the caller contacts—or any network attacker able to tamper with a response—can push arbitrary Python code into the caller's process by adding one of those keys to a JSON body. In-source comments label the sinks as 'Hidden execution', and the behavior is not disclosed in the package's advertised API. Effect on any program using this library is a remote code execution channel driven by attacker-controlled or attacker-influenced HTTP responses. ## Source: kam193 (556f2178ed2505024fd91bc1c9c20b59d78783c27badd166a220493e5184fb39) The package contains a hidden backdoor. The promised functionality is an HTTP request library with some additional functions. On every usage, code secretly checks for the presence of specific fields in the response, and if they are found, their content is secretly executed. --- Category: MALICIOUS - The campaign has clearly malicious intent, like infostealers. Campaign: 2026-08-reqcrypt Reasons (based on the campaign): - backdoor
Affected software
Run on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
reqcrypt is a Python HTTP client library that unconditionally inspects every HTTP response for JSON keys named 'payloaddd', 'payload_gz', and 'payload_zlib'. It base64/gzip/zlib-decodes the associated values and executes the resulting code via exec() in the caller's process. This hidden backdoor is triggered on every HTTP verb method (get/post/put/delete/patch/download/upload), enabling remote code execution from attacker-controlled or attacker-influenced HTTP responses. The malicious behavior is undocumented and embedded in the package, representing a severe security risk.
Potential Impact
Any program using reqcrypt version 0.1.0 is vulnerable to remote code execution through attacker-controlled HTTP responses. This allows an attacker to execute arbitrary Python code within the context of the calling process, potentially leading to full system compromise or data theft.
Mitigation Recommendations
No official patch or remediation is currently available. Users should immediately stop using reqcrypt version 0.1.0 and remove it from their environments. Avoid using this package until a trustworthy, clean version is released or an official advisory provides remediation guidance.
Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- MAL-2026-14133
- Osv Schema Version
- 1.7.4
- Ecosystems
- ["PyPI"]
Threat ID: 6a84fa65c6e8be0332ef1301
Added to database: 08/19/2026, 00:35:49 UTC
Last enriched: 08/19/2026, 00:51:21 UTC
Last updated: 10/01/2026, 10:14:37 UTC
Views: 39
Community Reviews
0 reviewsCrowdsource mitigation strategies, share intel context, and vote on the most helpful responses. Sign in to add your voice and help keep defenders ahead.
Want to contribute mitigation steps or threat intel context? Sign in or create an account to join the community discussion.
Actions
Updates to AI analysis require Pro Console access. Upgrade inside Console → Billing.
External Links
Need more coverage?
Upgrade to Pro Console for AI refresh and higher limits.
For incident response and remediation, OffSeq services can help resolve threats faster.
Latest Threats
Check if your credentials are on the dark web
Instant breach scanning across billions of leaked records. Free tier available.