CVE-2026-25990: Pillow has an out-of-bounds write when loading PSD images
Modified
AliasesSUSE-SU-2026:20992-1GHSA-cfh3-3jmp-rvhcBIT-pillow-2026-25990PYSEC-2026-2249UBUNTU-CVE-2026-25990USN-8047-1DEBIAN-CVE-2026-25990DSA-6147-1CGA-47fw-wc2r-46mrCGA-54gj-r862-mwvvCGA-668g-fpmv-xhx5CGA-6x35-pw3r-f2h4CGA-72qg-fcxv-qcg7CGA-896c-c2jc-88cqCGA-93ff-93jq-p6qmCGA-cj9q-4qph-gqm9CGA-rwx6-c326-cxgqCGA-xhwh-7cr5-v786CGA-xxjc-vwhq-3j69openSUSE-SU-2026:10198-1openSUSE-SU-2026:20458-1CGA-3hvh-cwhg-rh2fCGA-3jwv-g686-wr7jCGA-4mx2-6vrc-wjh2CGA-5cfw-jc5c-fhxrCGA-8mjw-gx7m-2j69CGA-8vxm-7jx5-99cfCGA-fggv-2gq6-r9rjCGA-fh6v-f7q5-42mjCGA-g962-rqww-9fw2CGA-gcw8-vqqh-r9qjCGA-gp5g-mx45-j45mCGA-m876-qcmf-494hCGA-ppcq-52q5-m3h6CGA-q95f-8qqv-8w5pCGA-rghx-p9q8-gvg2CGA-v4rq-4cg6-r852CGA-w65j-6j4r-q8xrALPINE-CVE-2026-25990
Published 11-02-2026Last modified 16-09-2026
Vulnerability summary
CVE-2026-25990 is a high (CVSS 8.6) Out-of-bounds Write vulnerability in python-pillow pillow. EPSS estimates a 0.41% chance of exploitation in the next 30 days, higher than 35.1% of scored vulnerabilities.
Priority
Routine
Not severe (CVSS 8.6, local access); no exploitation reported by the 5 checked sources
Source freshness unavailable
How is this decided?CVSS score
8.6/10
010
High · v4.0 (CVE.org)EPSS score
0.41%
0%100%
Low · -0.04 pp in 30 daysKEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits0No public exploits recorded
Advisory lineage
Upstream 0 · Downstream 5 · Related 1Timeline
- 11-02-2026PublishedVulnerability first disclosed.
- 16-09-2026Last modifiedVulnerability information updated.
Description
Pillow is a Python imaging library. From 10.3.0 to before 12.1.1, an out-of-bounds write may be triggered when loading a specially crafted PSD image. This vulnerability is fixed in 12.1.1.
CVSS metrics
11 scores · 8 sources · 2 versionsHigh 8.6Preferred score · CVE.org (CNA)
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:NSourcesAll 5 agree
- OSV · UbuntuEcosystem advisory · calculated8.6HighCVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
- OSV · WolfiEcosystem advisory · calculated8.6HighCVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
- OSV · ChainguardEcosystem advisory · calculated8.6HighCVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
- NVDNIST8.6HighCVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/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
High 7.3Preferred score · CVE.org (CNA)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:LSources6 sources · 7.3–7.5
- OSV · PypiEcosystem advisory · calculated7.5HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HDiffers
- OSV · UbuntuEcosystem advisory · calculated7.5HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HDiffers
- OSV · DebianEcosystem advisory · calculated7.5HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HDiffers
- NVDNIST7.5HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HDiffers
- OSV · AlpineEcosystem advisory · calculated7.5HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HDiffers
EPSS trend
Probability
0.41%
Chance of exploitation in the next 30 days
Percentile
35%
Versus all other CVEs
30-day change
Decrease -0.04 pp
From 0.45% on 04-10-2026
04-10-202603-11-2026
Known exploited
Compare KEV catalogs
CISA KEVNot in the CISA KEV catalog.
ENISA CNWNot in the ENISA CNW catalog.
CIRCLNot in the CIRCL catalog.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Version check
Known conditions: local access, no authentication, no user interaction (CVSS vector). Other conditions: not stated in public data.
Chainguard17 products
- kubeflow-pipelines-visualization-server< 2.15.0-r5
- label-studio< 1.22.0-r4
- litellm< 1.81.12.1-r0
- mlflow< 3.9.0-r1
- mlflow-iamguarded-compat< 3.9.0-r1
Wolfi5 products
- kubeflow-pipelines-visualization-server< 2.15.0-r5
- mlflow< 3.9.0-r1
- mlflow-iamguarded-compat< 3.9.0-r1
- open-webui< 0.8.3-r1 | < 0.11.0-r0
- superset-6.0< 6.0.0-r2
Opensuse2 products
- python-Pillow&distro=openSUSE Leap 16.0< 11.3.0-160000.3.1
- python-Pillow&distro=openSUSE Tumbleweed< 12.1.1-1.1
Suse2 products
- python-Pillow&distro=SUSE Linux Enterprise Server 16.0< 11.3.0-160000.3.1
- python-Pillow&distro=SUSE Linux Enterprise Server for SAP applications 16.0< 11.3.0-160000.3.1
Alpine1 product
- py3-pillow< 11.3.0-r2 | < 12.1.1-r0
Debian1 product
- pillow< 12.1.1-1 | < 11.1.0-5+deb13u1
PyPI1 product
- pillow≥ 10.3.0, < 12.1.1
Python1 product
- pillow≥ 10.3.0, < 12.1.1
Python-pillow1 product
- pillow≥ 10.3.0, < 12.1.1
Ubuntu1 product
- pillow< 11.3.0-1ubuntu1.1
10 vendors · 32 products
References
40 links- github.com/python-pillow/Pillow/security/advisories/GHSA-cfh3-3jmp-rvhcX Refsource CONFIRMWEBAdvisoryREPORTVendor Advisory
- github.com/python-pillow/Pillow/commit/9000313cc5d4a31bdcdd6d7f0781101abab553aaX Refsource MISCWEBFIXPatch
