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Mem0: Cross-tenant conversation leak via unescaped delimiter collision in session-scope key (_build_session_scope)

cve-program · CVE-2026-116575

Published

mem0

Vendor product

Original vendor version evidence · not evaluated as a NuGet range
{
                    "vendor": "mem0ai",
                    "product": "mem0",
                    "versions": [
                        {
                            "version": "< 2.0.18",
                            "status": "affected"
                        }
                    ]
                }

Original source record · Cite this exact observation · Complete original publisher JSON

euvd · EUVD-2026-110315

Published

EUVD source date text has no stated timezone and is retained without inventing a UTC instant. Related bulletin membership is not an alias, common cause or applicability claim. A missing vector with a zero score is treated as unrated. Complete vendor/product and underlying source evidence remains in the original JSON.

Original publisher date fields

datePublished: Oct 26, 2026, 8:15:01 PM

dateUpdated: Oct 27, 2026, 2:18:25 PM

No normalized affected-package data is projected for this source revision. The original publisher record may contain additional product and version evidence; this does not establish that a package is unaffected.

Original source record · Cite this exact observation · Complete original publisher JSON

nvd · CVE-2026-116575

Published

NVD analysis and CPE criteria are source context, not proof that a package or your environment is affected. Complete affected data, logical configurations and SSVC are retained in the original JSON.

Source analysis status: Deferred

Weakness classifications: CWE-200 · CWE-863

Original publisher date fields

published: 2026-10-26T21:18:13.360

lastModified: 2026-10-27T16:04:22.707

No normalized affected-package data is projected for this source revision. The original publisher record may contain additional product and version evidence; this does not establish that a package is unaffected.

Original source record · Cite this exact observation · Complete original publisher JSON

osv · GHSA-5324-3w58-qpp2

Published

mem0ai

PyPI

ECOSYSTEM · introduced 0 → fixed 2.0.18

186 explicitly affected versions

0.0.1, 0.0.10, 0.0.11, 0.0.12, 0.0.13, 0.0.14, 0.0.15, 0.0.16, 0.0.17, 0.0.18, 0.0.19, 0.0.2, 0.0.20, 0.0.20rc1, 0.0.21, 0.0.3, 0.0.4, 0.0.5, 0.0.6, 0.0.7, 0.0.8, 0.0.9, 0.1.0, 0.1.1, 0.1.10, 0.1.100, 0.1.101, 0.1.102, 0.1.103, 0.1.104, 0.1.106, 0.1.107, 0.1.107rc1, 0.1.107rc2, 0.1.108, 0.1.109, 0.1.11, 0.1.110, 0.1.111, 0.1.112, 0.1.113, 0.1.114, 0.1.115, 0.1.116, 0.1.117, 0.1.118, 0.1.12, 0.1.13, 0.1.14, 0.1.15, 0.1.16, 0.1.17, 0.1.18, 0.1.19, 0.1.2, 0.1.20, 0.1.20a0, 0.1.21, 0.1.22, 0.1.23, 0.1.24, 0.1.25, 0.1.26, 0.1.27, 0.1.28, 0.1.29, 0.1.3, 0.1.30, 0.1.31, 0.1.32, 0.1.33, 0.1.34, 0.1.35, 0.1.36, 0.1.37, 0.1.38, 0.1.39, 0.1.4, 0.1.40, 0.1.41, 0.1.42, 0.1.43, 0.1.44, 0.1.45, 0.1.45rc1, 0.1.46, 0.1.47, 0.1.48, 0.1.49, 0.1.5, 0.1.50, 0.1.52, 0.1.53, 0.1.54, 0.1.55, 0.1.56, 0.1.57, 0.1.58, 0.1.59, 0.1.6, 0.1.60, 0.1.61, 0.1.62, 0.1.63, 0.1.65, 0.1.66, 0.1.67, 0.1.69, 0.1.7, 0.1.70, 0.1.71, 0.1.72, 0.1.73, 0.1.74, 0.1.75, 0.1.76, 0.1.77, 0.1.78, 0.1.78a0, 0.1.78a1, 0.1.78a2, 0.1.79, 0.1.8, 0.1.80, 0.1.81, 0.1.81a0, 0.1.81a1, 0.1.81a2, 0.1.82, 0.1.83, 0.1.84, 0.1.84a1, 0.1.85, 0.1.86, 0.1.87, 0.1.88, 0.1.89, 0.1.9, 0.1.90, 0.1.91, 0.1.92, 0.1.93, 0.1.94, 0.1.95, 0.1.96, 0.1.96rc1, 0.1.97, 0.1.98, 0.1.99, 0.1.99a0, 0.1.99a1, 0.1.99a2, 0.1.99a3, 1.0.0, 1.0.0b0, 1.0.1, 1.0.10, 1.0.11, 1.0.2, 1.0.3, 1.0.4, 1.0.5, 1.0.6, 1.0.7, 1.0.8, 1.0.9, 2.0.0, 2.0.0b0, 2.0.0b1, 2.0.0b2, 2.0.1, 2.0.10, 2.0.11, 2.0.12, 2.0.13, 2.0.14, 2.0.15, 2.0.16, 2.0.17, 2.0.2, 2.0.3, 2.0.4, 2.0.5, 2.0.6, 2.0.7, 2.0.8

mem0ai

npm

SEMVER · introduced 0 → fixed 3.1.6

Original source record · Cite this exact observation · Complete original publisher JSON

ChangeIntel

An IT change radar: releases, security, known issues, retirements, documentation changes, and service status from public sources. Every item links to supporting evidence; dates and statuses can change after they are read.

Sources read 30 Oct 14:51 UTC · 272 of 272 readable · 271 fully read · documentation 469/469 current