BaselineWatch
Desk
Your fleet and your work Fleetyour releases and the hardware they run onTriagewhat needs a decisionWatchlistthe products and platforms you runSaved searchesthe lists you come back to
This instance Sourceswhat is read, how often, under what termsDigestthe daily or weekly summary, and alerts
How it is drawn Appearancethe look and the colour schemeBrandingthe mark this instance wears
Owner sign-in

CVE-2026-96642

7.1 high Analyzed
NVD · CVE.org

Pillow is a Python imaging library. Prior to 13.0.0, the TarIO initializer in src/PIL/TarIO.py accepts a negative octal member size and computes a backward seek that returns to the same 512-byte header. When the requested member name does not match, the parser repeatedly reads that header, consumes a full CPU core, and never returns. TarIO is reached only when an application directly uses PIL.TarIO.TarIO rather than the default Image.open() path. This issue is fixed in version 13.0.0.

Fix

Patch, vendor advisory and mitigation references on NVD 2

Every line above is quoted from NVD, CISA, Microsoft, the vendor's own advisory or DISA; nothing is generated.

Change history 7

  1. Cpes+1 CPE criteria (now 1)NVD modified 2026-10-27 14:26
  2. StatusAwaiting Analysis → AnalyzedNVD modified 2026-10-27 14:26
  3. StatusPublished → Awaiting AnalysisNVD modified 2026-10-22 16:46
  4. StatusReceived → PublishedNVD modified 2026-10-21 20:49
  5. StatusPublished → ReceivedNVD modified 2026-10-21 21:20
  6. CVSS7.1 (v4.0, CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N) → 7.1 (v4.0, CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/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)NVD modified 2026-10-21 21:20
  7. First seenCVSS 7.1 · python-pillowNVD modified 2026-10-21 20:49

Affected (CPE criteria) 1

  • cpe:2.3:a:python:pillow:*:*:*:*:*:*:*:*

References 4