Pillow is a Python imaging library. Prior to 13.0.0, Pillow's FlashPix JPEG-tile decoder can write decoded scanlines beyond the allocated tile buffer. FlashPix (FPX) JPEG decoding selects raw mode LA with two bytes per pixel, while an unrecognized JPEG mode can be decoded as JCS_UNKNOWN with four components, causing ImagingJpegDecode to write four-component scanlines into the two-byte tile buffer. An attacker can supply a crafted OLE2 FlashPix file to an application with the optional olefile dependency installed that opens or thumbnails untrusted input. This can corrupt heap memory and may allow arbitrary code execution. This issue is fixed in version 13.0.0.
CVE-2026-112398
“—” beside the score: it is equal to NVD's CVSS score.
This critical-severity CVE scores 9.8 under NVD CVSS v3. EPSS exploit probability: 0.7% (53rd percentile of EPSS-scored CVEs). No GitHub Security Advisory CVSS is on record for this CVE.
Also known asEUVD-2026-104634 (ENISA EUVD) · GHSA-5x8w-8jj5-q52h (GitHub Security Advisories) · PYSEC-2026-4330 (OSV.dev)Source: ENISA EUVD
- CISA's Vulnrichment rates exploitation as PoC; EchelonGraph holds no exploit-code reference for it
A fix is available — apply it.
- CVSS v3
- 9.8
- EG Score
- 9.8CRITICALmedium confidence
- EG Risk
- 60EG Risk 60/100
EG Risk is EchelonGraph's 0–100 priority score. It fuses impact severity (EG Severity, the CVSS base score, never the KEV-floored or EPSS-lifted EG Score) with real-world exploitation and automatability, under weights EchelonGraph set by hand, so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner.
How it’s computed (value × EchelonGraph’s weight)Severity98% × 45%Impact severity (EG Severity): CVSS 9.8 of 10. Never the KEV-floored or EPSS-lifted EG Score.Exploitation40% × 40%EchelonGraph's fixed weight for EG-KEV Tier 3 (Elevated): a constant, not a probability.Automatability0% × 15%CISA's SSVC Automatable value: no (Vulnrichment).SSVC (CISA's decision table, applied by EchelonGraph): Track at low, Track* at medium and Attend at high mission impact.Exploitation public PoC (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE.Action: A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high. - EPSS PROB
- 0.7%
- EPSS %ILE
- 53rd
- KEV
- Not listed
What the EG score is made of (scorer v4.0: the three questions the 0–10 score mixes, published apart · methodology)
The EG score (9.8): severity, escalated by confirmed exploitation. This CVE's 9.8 is its impact severity (EG Severity), not escalated.
- EG Severity
- 9.8 CRITICALCVSS-B, impact only: no KEV listing, EPSS or EG-KEV tier raises it.NVD CVSS v3 · CVSS v3.0 or v3.1
- EG Likelihood
- 0.7% within 30 daysSource: FIRST EPSS (model v2026.06.15, score date 2026-11-12). FIRST's exploitation probability, not an EchelonGraph model.
- Confirmed exploitation
- None on record (CISA KEV, EG-KEV Tier 1)Reported apart from the likelihood: an observed fact, not a probability.
- EG Priority
- SSVC Track* at medium mission impactTrack at low, Track* at medium and Attend at high mission impact.CISA BOD 26-04: 14 days if the affected system is publicly exposed; Fix on system upgrade if it is not.Each input and its source, and whom BOD 26-04 binds: the SSVC and BOD 26-04 blocks below.
SSVC (CISA's decision table, applied by EchelonGraph)Track at low, Track* at medium and Attend at high mission impact.
A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.
Exploitation public PoC (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE. Mission impact is CISA's Mission & Well-being decision point, and only you can judge it. CISA's table makes it high when Mission Prevalence is Essential — the vulnerable component "directly provides capabilities that constitute at least one MEF for at least one entity" (MEF: mission essential function) — or when Public Well-Being Impact is Irreversible: "multiple fatalities are likely", the cyber-physical system "is likely lost or destroyed", "extreme or serious externalities" are imposed on other parties, or social systems such as elections or the financial grid "are destabilized and potentially collapse". CISA's decision table
BOD 26-04 (CISA's remediation timeline, Table 1)14 days if the affected system is publicly exposed; Fix on system upgrade if it is not.
The score's inputs: In CISA KEV no (CISA's KEV catalog) · Automatable no (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). Whether your system is publicly exposed is yours to answer. BOD 26-04 binds US Federal Civilian Executive Branch agencies; for anyone else it is CISA's published timeline, a reference rather than an obligation. The directive · how EchelonGraph applies it
Published
October 19, 2026
Last Modified
October 27, 2026
Advisory Details (3)
Auto-updated Nov 7, 2026Heap buffer overflow in FlashPix (FPX) JPEG decoding leads to code execution · Advisory · python-pillow/Pillow · GitHub
https://github.com/python-pillow/Pillow/security/advisories/GHSA-5x8w-8jj5-q52h13.0.0
Patch available: python-pillow/Pillow 13.0.0
https://github.com/python-pillow/Pillow/releases/tag/13.0.0commit 242a059aedc1 (python-pillow/Pillow)
Patch available: python-pillow/Pillow 13.0.0 (contains commit 242a059aedc1)
https://github.com/python-pillow/Pillow/commit/242a059aedc1935097d9aa1dc3f099750467ba75Vendor Advisories for CVE-2026-112398(15)
These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.
- RHSA-2026:98109Red Hat Product SecurityCritical
Red Hat Security Advisory: python-pillow security update
- RHSA-2026:98120Red Hat Product SecurityCritical
Red Hat Security Advisory: python-pillow security update
- RHSA-2026:98111Red Hat Product SecurityCritical
Red Hat Security Advisory: python-pillow security update
- RHSA-2026:95655Red Hat Product SecurityCritical
Red Hat Security Advisory: Satellite 6.16 EUS security update
- RHSA-2026:95657Red Hat Product SecurityCritical
Red Hat Security Advisory: Satellite 6.18 security update
- RHSA-2026:95656Red Hat Product SecurityCritical
Red Hat Security Advisory: Satellite 6.17 security update
- RHSA-2026:94738Red Hat Product SecurityCritical
Red Hat Security Advisory: Red Hat AI Inference 3.5.3 (CUDA)
- RHSA-2026:94721Red Hat Product SecurityCritical
Red Hat Security Advisory: Red Hat AI Inference Tech Preview 3.5.3 (Gaudi)
- +7 more
Patch Availability(14)
| Vendor / Ecosystem | Fix (by version range) / Patch | Released | Source |
|---|---|---|---|
| redhat | python-pillow-0:5.1.1-15.el8_4.3 | 2026-11-11 | redhat |
| redhat | python-pillow-0:5.1.1-20.el8_8.2 | 2026-11-11 | redhat |
| redhat | python-pillow-0:5.1.1-20.el8_6.2 | 2026-11-11 | redhat |
| redhat | python3.12-pillow-0:13.0.0-1.el9pc | 2026-11-05 | redhat |
| redhat | python-pillow-0:13.0.0-1.el9pc | 2026-11-05 | redhat |
| redhat | python-pyyaml-0:6.0.1-1.el9pc | 2026-11-05 | redhat |
| redhat | rhaii/vllm-rocm-rhel9:1793444456 | 2026-11-03 | redhat |
| redhat | rhaii/vllm-gaudi-rhel9:1793444510 | 2026-11-03 | redhat |
| redhat | rhaii/vllm-cuda-rhel9:1793444600 | 2026-11-03 | redhat |
| redhat | rhaii/vllm-cpu-rhel9:1793444554 | 2026-11-03 | redhat |
| redhat | rhaii/model-opt-cuda-rhel9:1793444339 | 2026-11-03 | redhat |
| redhat | rhaii/vllm-spyre-rhel9:1793444409 | 2026-11-03 | redhat |
| redhat | python-pillow-0:5.1.1-36.el8_10 | 2026-10-30 | redhat |
| pip | pillow @ 13.0.0 (fixes <= 12.3.0) | — | ghsa |
Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.
Affected Packages
(4 across 4 ecosystems)
Debian:12(1)
| Package | Vulnerable range | Fix by version range | Dependents |
|---|---|---|---|
| pillow | 10.0.0-1 ... 9.5.0-1 (24 versions) |
| — |
Debian:13(1)
| Package | Vulnerable range | Fix by version range | Dependents |
|---|---|---|---|
| pillow | 11.1.0-5 ... 13.0.0-1 (14 versions) |
| — |
Debian:14(1)
| Package | Vulnerable range | Fix by version range | Dependents |
|---|---|---|---|
| pillow | 11.1.0-5 ... 13.0.0-1 (10 versions) |
| — |
PyPI(1)
| Package | Vulnerable range | Fix by version range | Dependents |
|---|---|---|---|
| pillow | 1.0 ... 9.5.0 (107 versions) |
| — |
Weakness Classification(2)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Data Freshness Timeline
(refreshed 22× in last 7d / 56× in last 30d)
Each row is a time one of our pipelines fetched, updated or re-scored this CVE. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed its CVE.org record (CNA or CISA ADP). An arrow marks a change the record states ("CVSS v3 → 9.1"); EPSS and GHSA rows show the values recorded at that time, not what changed (EPSS values are rounded; hover one for the exact figures). "EchelonGraph re-scored" is our own recompute of this CVE's score, not an update from a source, and is not counted in the refreshes above. Most recent first.
- 2026-11-12 23:10 UTCEchelonGraph re-scored
- 2026-11-12 23:10 UTCGHSA enrichmentGHSA-5x8w-8jj5-q52h · GitHub severity CRITICAL
- 2026-11-12 16:33 UTCEPSS rescoreEPSS 0.7% · 53rd percentile
- 2026-11-12 00:54 UTCEchelonGraph re-scored
- 2026-11-12 00:54 UTCVendor advisory
- 2026-11-12 00:54 UTCGHSA enrichmentGHSA-5x8w-8jj5-q52h · GitHub severity CRITICAL
- 2026-11-11 16:38 UTCEPSS rescoreEPSS 0.7% · 53rd percentile
- 2026-11-11 02:38 UTCEchelonGraph re-scored
- 2026-11-11 02:38 UTCVendor advisory
- 2026-11-11 02:38 UTCGHSA enrichmentGHSA-5x8w-8jj5-q52h · GitHub severity CRITICAL
- 2026-11-10 16:42 UTCEPSS rescoreEPSS 0.7% · 53rd percentile
- 2026-11-10 06:18 UTCEchelonGraph re-scored
- 2026-11-10 06:18 UTCVendor advisory
- 2026-11-10 06:18 UTCGHSA enrichmentGHSA-5x8w-8jj5-q52h · GitHub severity CRITICAL
- 2026-11-09 16:34 UTCEPSS rescoreEPSS 0.7% · 53rd percentile
- 2026-11-09 08:02 UTCEchelonGraph re-scored
- 2026-11-09 08:02 UTCVendor advisory
- 2026-11-09 08:02 UTCGHSA enrichmentGHSA-5x8w-8jj5-q52h · GitHub severity CRITICAL
- 2026-11-08 16:38 UTCEPSS rescoreEPSS 0.7% · 53rd percentile
- 2026-11-08 09:46 UTCEchelonGraph re-scored
- 2026-11-08 09:46 UTCVendor advisory
- 2026-11-08 09:46 UTCGHSA enrichmentGHSA-5x8w-8jj5-q52h · GitHub severity CRITICAL
- 2026-11-07 16:38 UTCEPSS rescoreEPSS 0.7% · 53rd percentile
- 2026-11-07 11:29 UTCEchelonGraph re-scored
- 2026-11-07 11:29 UTCVendor advisory
Show 60 moreShow fewer
- 2026-11-07 11:29 UTCGHSA enrichmentGHSA-5x8w-8jj5-q52h · GitHub severity CRITICAL
- 2026-11-06 16:36 UTCEPSS rescoreEPSS 0.7% · 53rd percentile
- 2026-11-06 13:13 UTCEchelonGraph re-scored
- 2026-11-06 13:13 UTCVendor advisory
- 2026-11-06 13:13 UTCGHSA enrichmentGHSA-5x8w-8jj5-q52h · GitHub severity CRITICAL
- 2026-11-05 23:25 UTCOSV refresh
- 2026-11-05 16:36 UTCEPSS rescoreEPSS 0.7% · 53rd percentile
- 2026-11-05 14:56 UTCVendor advisory
- 2026-11-05 14:56 UTCGHSA enrichmentGHSA-5x8w-8jj5-q52h · GitHub severity CRITICAL
- 2026-11-04 16:40 UTCEchelonGraph re-scored
- 2026-11-04 16:40 UTCVendor advisory
- 2026-11-04 16:40 UTCGHSA enrichmentGHSA-5x8w-8jj5-q52h · GitHub severity CRITICAL
- 2026-11-04 16:34 UTCEPSS rescoreEPSS 0.7% · 53rd percentile
- 2026-11-03 18:23 UTCEchelonGraph re-scored
- 2026-11-03 18:23 UTCVendor advisory
- 2026-11-03 18:23 UTCGHSA enrichmentGHSA-5x8w-8jj5-q52h · GitHub severity CRITICAL
- 2026-11-03 16:46 UTCEPSS rescoreEPSS 0.7% · 53rd percentile
- 2026-11-03 09:00 UTCEchelonGraph re-scored
- 2026-11-03 09:00 UTCVendor advisory
- 2026-11-03 09:00 UTCGHSA enrichmentGHSA-5x8w-8jj5-q52h · GitHub severity CRITICAL
- 2026-11-02 16:44 UTCEPSS rescoreEPSS 0.7% · 53rd percentile
- 2026-11-02 10:45 UTCEchelonGraph re-scored
- 2026-11-02 10:45 UTCVendor advisory
- 2026-11-02 10:45 UTCGHSA enrichmentGHSA-5x8w-8jj5-q52h · GitHub severity CRITICAL
- 2026-11-01 16:33 UTCEPSS rescoreEPSS 0.7% · 53rd percentile
- 2026-11-01 12:28 UTCVendor advisory
- 2026-11-01 12:28 UTCGHSA enrichmentGHSA-5x8w-8jj5-q52h · GitHub severity CRITICAL
- 2026-11-01 07:59 UTCGHSA enrichmentGHSA-5x8w-8jj5-q52h · GitHub severity CRITICAL
- 2026-11-01 07:59 UTCEchelonGraph re-scored
- 2026-10-31 16:32 UTCEPSS rescoreEPSS 0.7% · 53rd percentile
- 2026-10-31 14:12 UTCEchelonGraph re-scored
- 2026-10-31 14:12 UTCVendor advisory
- 2026-10-30 16:33 UTCEPSS rescoreEPSS 0.7% · 52nd percentile
- 2026-10-29 17:39 UTCEchelonGraph re-scored
- 2026-10-29 16:32 UTCEPSS rescoreEPSS 0.7% · 52nd percentile
- 2026-10-28 19:22 UTCEchelonGraph re-scored
- 2026-10-28 16:31 UTCEPSS rescoreEPSS 0.7% · 52nd percentile
- 2026-10-27 21:06 UTCEchelonGraph re-scored▲ 0.60
- 2026-10-27 21:05 UTCNVD updateCVSS v3 → 9.8
- 2026-10-27 16:31 UTCEPSS rescoreEPSS 0.6% · 47th percentile
- 2026-10-27 12:49 UTCEchelonGraph re-scored
- 2026-10-26 16:30 UTCEPSS rescoreEPSS 0.6% · 46th percentile
- 2026-10-26 15:25 UTCEchelonGraph re-scored
- 2026-10-25 16:32 UTCEPSS rescoreEPSS 0.6% · 46th percentile
- 2026-10-25 14:51 UTCEchelonGraph re-scored
- 2026-10-24 18:11 UTCEchelonGraph re-scored
- 2026-10-24 16:32 UTCEPSS rescoreEPSS 0.3% · 23rd percentile
- 2026-10-23 19:54 UTCEchelonGraph re-scored
- 2026-10-23 16:31 UTCEPSS rescoreEPSS 0.3% · 23rd percentile
- 2026-10-22 21:27 UTCEchelonGraph re-scored
- 2026-10-22 21:11 UTCEchelonGraph re-scored
- 2026-10-22 16:55 UTCEchelonGraph re-scored
- 2026-10-22 16:33 UTCEPSS rescoreEPSS 0.3% · 23rd percentile
- 2026-10-21 18:22 UTCEchelonGraph re-scored
- 2026-10-21 16:32 UTCEPSS rescoreEPSS 0.3% · 23rd percentile
- 2026-10-20 16:50 UTCEchelonGraph re-scored
- 2026-10-20 16:32 UTCEPSS rescoreEPSS 0.3% · 23rd percentile
- 2026-10-19 22:27 UTCEchelonGraph re-scored
- 2026-10-19 21:24 UTCEchelonGraph re-scoredFirst assessed: 9.2 CRITICAL
- 2026-10-19 21:22 UTCMITRE cvelistV5first tracked
Related CVEs(same product + same vendor + same CWE)
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10 shownDebian:12:pillow
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- CVE-2026-112900EG 9.8CRITICAL
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- CVE-2026-112393EG 9.8CRITICAL
- CVE-2022-30595EG 9.8CRITICAL
- CVE-2022-22817EG 9.8EPSS p90CRITICAL
- CVE-2021-34552EG 9.8CRITICAL
- CVE-2021-25289EG 9.8CRITICAL
- CVE-2020-5312EG 9.8EPSS p90CRITICAL
- CVE-2020-5311EG 9.8EPSS p91CRITICAL
Same vendor
10 shownredhat:RHSA-2026:92861 · redhat:RHSA-2026:93077
Frequently asked(5)
What is CVE-2026-112398?
When was the CVE record for CVE-2026-112398 published?
Is CVE-2026-112398 actively exploited?
What is the CVSS score of CVE-2026-112398?
How do I remediate CVE-2026-112398?
Dependency Blast Radius
See which npm, PyPI, Go, and Maven packages are affected by CVE-2026-112398
Is Your Infrastructure Affected by CVE-2026-112398?
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