{"id":"CVE-2026-112100","kind":"vulnerability","aliases":["CVE-2026-112100"],"related":[],"title":"DeepPavlov: preprocessor argument injection lets remote attackers run code","description":"A vulnerability was determined in DeepPavlov up to 1.7.0. This affects the function MultiTaskPipelinePreprocessor.__init__ of the file deeppavlov/models/preprocessors/multitask_preprocessor.py. This manipulation of the argument preprocessor causes code injection. The attack is possible to be carried out remotely. The exploit has been publicly disclosed and may be utilized. The project was informed of the problem early through an issue report but has not responded yet.","summary":"DeepPavlov up to 1.7.0 passes the preprocessor argument of MultiTaskPipelinePreprocessor.__init__ into code without proper checks. A remote attacker who controls that argument can inject code that runs on the host.","severity":"medium","cvss":6.5,"epss":null,"exploited":false,"exploited_at":null,"products":[],"ecosystems":[],"tags":["deeppavlov","package","pypi","python"],"not_affected_if":["fixed-pipeline-config","no-user-controlled-config"],"how_to_check":"- Check whether the installed DeepPavlov version is 1.7.0 or lower.\n- Find where the application sets the `preprocessor` argument for MultiTaskPipelinePreprocessor and whether any part of it comes from user input or external config.","fix":"- unknown: the sources report no fixed version and say the project has not responded to the report.\n- Until a fix exists, keep the `preprocessor` argument out of anything a user or remote caller can set.","status":"open","published_at":"2026-10-19T10:16:46+00:00","first_seen_at":"2026-10-23T21:57:17+00:00","triaged_at":"2026-10-25T03:57:19+00:00","updated_at":"2026-10-25T03:57:19+00:00","category":"package","confidence":0.6,"triage":{"at":"2026-10-25T03:57:19Z","model":"claude-haiku-5-5","output":{"fix":"- unknown: the sources report no fixed version and say the project has not responded to the report.\n- Until a fix exists, keep the `preprocessor` argument out of anything a user or remote caller can set.","reach":"internet","title":"DeepPavlov: preprocessor argument injection lets remote attackers run code","impact":"high","summary":"DeepPavlov up to 1.7.0 passes the preprocessor argument of MultiTaskPipelinePreprocessor.__init__ into code without proper checks. A remote attacker who controls that argument can inject code that runs on the host.","category":"package","nicknames":[],"who_cares":["python","deeppavlov","pypi"],"confidence":0.6,"needs_auth":"unknown","worst_case":"Attacker runs arbitrary code on the server hosting the pipeline","analyst_note":"Find a DeepPavlov patch or maintainer response and the public exploit write-up; the NVD entry lists no fix and the sources do not say which inputs reach the preprocessor argument in default use.","how_to_check":"- Check whether the installed DeepPavlov version is 1.7.0 or lower.\n- Find where the application sets the `preprocessor` argument for MultiTaskPipelinePreprocessor and whether any part of it comes from user input or external config.","needs_analyst":true,"not_affected_if":["fixed-pipeline-config","no-user-controlled-config"],"who_is_affected":"Applications that use DeepPavlov 1.7.0 or lower and build the MultiTaskPipelinePreprocessor from values an outside party can influence are exposed. Systems that only load fixed, developer-written pipeline configs are less likely to be reachable; the sources do not say how common that setup is.","user_interaction":"no","needs_special_setup":"unknown","severity_if_unknown":"medium"},"cost_usd":0.001173,"input_tokens":3365,"output_tokens":1673,"severity_before":"medium"},"analyst_status":null,"analyst_note":null,"search":"'-112100':12A,15A '-2026':11A,14A '1.7.0':23B,58C 'affect':60C 'argument':3A,27B,41B,72C 'attack':7A,37B,78C 'carri':83C 'caus':74C 'check':34B 'code':9A,31B,44B,75C 'control':39B 'cve':10A,13A 'deeppavlov':1A,16B,20B,55C 'deeppavlov/models/preprocessors/multitask_preprocessor.py':67C 'determin':53C 'disclos':91C 'earli':103C 'exploit':87C 'file':66C 'function':62C 'host':49B 'inform':99C 'inject':4A,43B,76C 'issu':106C 'let':5A 'manipul':69C 'may':93C 'multitaskpipelinepreprocessor.__init__':29B,63C 'packag':17B 'pass':24B 'possibl':80C 'preprocessor':2A,26B,73C 'problem':102C 'project':97C 'proper':33B 'public':90C 'pypi':18B 'python':19B 'remot':6A,36B,85C 'report':107C 'respond':111C 'run':8A,46B 'util':95C 'vulner':51C 'without':32B 'yet':112C","nicknames":[],"mitigations":[],"who_affected":"Applications that use DeepPavlov 1.7.0 or lower and build the MultiTaskPipelinePreprocessor from values an outside party can influence are exposed. Systems that only load fixed, developer-written pipeline configs are less likely to be reachable; the sources do not say how common that setup is.","tier":"C","verified":{},"analyst_revisit_at":null,"first_public_at":"2026-10-19T10:16:46+00:00","kev":null,"cvss_vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","cvss_by":"cna@vuldb.com","poc_count":0,"sources":[{"source":"nvd","external_id":"CVE-2026-112100","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-112100","severity":null,"published_at":"2026-10-19T10:16:46+00:00","modified_at":"2026-10-22T03:16:35+00:00","first_seen_at":"2026-10-23T21:57:17+00:00","fetched_at":"2026-10-23T22:28:56+00:00","note":null}],"documents":[],"notice":"Free to read at a human pace. An API with keys and an MCP server are in preparation; early access: hello@infrastack.ai"}