GHSA-h6hf-9846-xwrqPublished

Lemmy: SSRF and internal image disclosure in post link metadata via unvalidated og:image

cve-program · CVE-2026-42181

Published

lemmy

Vendor product

Original vendor version evidence · not evaluated as a NuGet range

{
                    "vendor": "LemmyNet",
                    "product": "lemmy",
                    "versions": [
                        {
                            "version": "< 0.19.18",
                            "status": "affected"
                        }
                    ]
                }

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

euvd · EUVD-2026-28820

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: May 8, 2026, 7:26:07 PM

dateUpdated: May 11, 2026, 4:01:01 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-2026-42181

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-918

Original publisher date fields

published: 2026-05-08T20:16:31.160

lastModified: 2026-10-26T18:10:00.173

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

osv · GHSA-h6hf-9846-xwrq

Published

lemmy_api_common

crates.io

SEMVER · introduced 0 → fixed 0.19.18

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