Approved changes feed: RSS · Atom

cpe:2.3:a:jupyterhub:ltiauthenticator:*:*:*:*:*:*:*:*

part: a version: * update: *

VendorJupyterhub (b9fc67de-411f-5996-aa79-a32cff5a7e29)
ProductLtiauthenticator (9be4776a-bbe5-5279-a48e-8200c0894d15)
Edition*
Language*
Software edition*
Target software*
Target hardware*
Other*
NotesImported from gcve-enriched-dumps CVE data

PURL mappings

PURLSourceLast updated
No PURL mappings for this CPE yet.

Vulnerability references

IdentifiercpeApplicabilitySubmitteddb.gcve.eu detailsRationale
CVE:CVE-2026-34052 vulnerable 2026-06-08 07:59:11.712125 LTI JupyterHub Authenticator: Unbounded Memory Growth via Nonce Storage (Denial of Service)
MEDIUM (5.9)
LTI JupyterHub Authenticator is a JupyterHub authenticator for LTI. Prior to version 1.6.3, the LTI 1.1 validator stores OAuth nonces in a class-level dictionary that grows without bounds. Nonces are added before signature validation, so an attacker with knowledge of a valid consumer key can send repeated requests with unique nonces to gradually exhaust server memory, causing a denial of service. This issue has been patched in version 1.6.3.
Published: 2026-04-03T22:04:10.519Z
Updated: 2026-04-06T18:59:04.966Z
Reference links
Imported from gcve-enriched-dumps CVE data
CVE:CVE-2023-25574 vulnerable 2026-06-08 05:56:09.277205 JupyterHub's LTI13Authenticator: JWT signature not validated
CRITICAL (10)
`jupyterhub-ltiauthenticator` is a JupyterHub authenticator for learning tools interoperability (LTI). LTI13Authenticator that was introduced in `jupyterhub-ltiauthenticator` 1.3.0 wasn't validating JWT signatures. This is believed to allow the LTI13Authenticator to authorize a forged request. Only users that has configured a JupyterHub installation to use the authenticator class `LTI13Authenticator` are affected. `jupyterhub-ltiauthenticator` version 1.4.0 removes LTI13Authenticator to address the issue. No known workarounds are available.
Published: 2025-02-25T14:42:33.337Z
Updated: 2025-02-25T14:51:02.754Z
Reference links
Imported from gcve-enriched-dumps CVE data

Contribute

You can submit an edit proposal for this CPE entry or suggest a related product/vendor addition using the action button above.