Event Monitor Cyber
EM-20261030-3WGR VulnerabilityHigh severity

OAuthLib Vulnerability (CVE-2026-118669)

CVE-2026-118669

Status
Developing

Since : signals keep joining.

First Signal
Oct 28 22:17 UTCC6 NVD CVE API 2.0
Page Born
Oct 30 22:58 UTCsecond source joined
Last Signal
Oct 30 22:58 UTC5 days before snapshot
Sources
20 official · 2 research, news or crowd
Open For
7 daysso far

Life Of This Page

  1. 1
    Born
    A second, independent source names it.
  2. 2
    Developing · Now
    New signals join; severity can move.
  3. 3
    Confirmed
    Not yet
    CISA KEV lists it, or exploitation in the wild is reported.
  4. 4
    Resolved
    Not yet
    Past the fix deadline and 14 days with no new signal.
  5. 5
    Archived
    Not yet
    30 days after resolved. Read only; the link keeps working. Reopens if it comes back.

The address and ID never change. A correction is logged, never overwritten. If two pages turn out to be one incident, the later one points to the earlier.

Vulnerability Lifecycle

  1. Disclosed: reached
    Oct 28 22:17 UTC
    C6 NVD published
  2. Scored: reached
    Oct 28 22:17 UTC
    CVSS 8.4 · EPSS 0.3%
  3. Exploited: not yet
    Not yet
    No exploitation reported
  4. Advisories: not yet
    Not yet
    None yet
  5. Vendor Response: not yet
    Not yet
    None in sources yet
  6. Resolved: not yet
    Not yet
    After 14 quiet days

Timeline

Oct 2912:00Oct 3012:00Oct 31BornC6 NVD CVE API 2.0C26 GitHub Advisory Database

Point at a mark to read it. Squares are signals, colored by severity; every one is also listed under Signals.

Signals

  1. GHSA-7984-qgvg-3j9c / CVE-2026-118669: OAuthLib: Token grants can use attacker-supplied client_id for authorization after authenticating a different client (opens source in a new tab) pip:oauthlib High severityDatabaseC26 GitHub Advisory Database
  2. CVE-2026-118669 (CVSS 8.4) (opens source in a new tab) OAuthLib is an implementation of the OAuth request-signing logic for Python 3.6+. Prior to 4.0.0, the client_credentials and Resource Owner Password Credentials token grant handlers can authenticate request.client as one… High severityDatabaseC6 NVD CVE API 2.0