CVE-2026-59200: python-pillow pillow Uncontrolled Resource Consumption
CVSS: 7.5v3.1HighAnalyzed
AliasesGHSA-jjj6-mw9f-p565BIT-pillow-2026-59200PYSEC-2026-3495UBUNTU-CVE-2026-59200DEBIAN-CVE-2026-59200CGA-25p8-683r-4w78CGA-27fm-q2fw-gvr2CGA-2j9f-g7g4-8jv4CGA-4jmp-j878-xwcwCGA-554m-hmph-xhjhCGA-5654-p3mq-78p2CGA-cw36-vq96-jrvrCGA-fxhw-6pm8-w45rCGA-g9c4-jvvm-7q39CGA-h8rx-9rwc-v85mCGA-hv57-j2fh-r3fmCGA-jv4j-2xpg-f3r3CGA-q5x6-5g9f-x8jxCGA-q83c-fxqg-347qCGA-qw4m-8wm9-g2jhCGA-2mm5-wqf2-hcx2CGA-33cm-v6v6-259gCGA-54gh-66v8-ww6fCGA-5jjf-3p79-7r86CGA-6grw-5vw5-42g2CGA-83cm-4xp6-wf89CGA-8gm2-jc65-cc49CGA-9mm9-jgjj-g499CGA-c5gp-qm8h-pc25CGA-gr3c-wh7f-523pCGA-hcg8-jf6v-wh2vCGA-jqpj-744w-9m3cCGA-pr2p-7376-9vxqCGA-px3r-3pw4-6cc7CGA-qjg4-278c-55qwCGA-w7vm-49r2-mrr4
Published 14-07-2026Last modified 14-07-2026
Vulnerability summary
CVE-2026-59200 is a high (CVSS 7.5) Uncontrolled Resource Consumption vulnerability in python-pillow pillow. EPSS estimates a 0.39% chance of exploitation in the next 30 days, higher than 31.1% of scored vulnerabilities. 1 public exploit is recorded.
CVSS score
7.5/10
010
High · v3.1 (CVE.org)EPSS score
0.39%
0%100%
Low · 0.00 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits1github
Advisory lineage
Upstream 0 · Downstream 6 · Related 7Timeline
- 14-07-2026PublishedVulnerability first disclosed.
- 14-07-2026Last modifiedVulnerability information updated.
Description
Pillow is a Python imaging library. From 5.1.0 until 12.3.0, PdfParser.PdfStream.decode() in PIL/PdfParser.py calls zlib.decompress() with bufsize set to the PDF stream Length field without bounding the decompressed output size, allowing a crafted FlateDecode PDF stream to exhaust memory from a small file. This issue is fixed in version 12.3.0.
CVSS metrics
7 scores · 7 sources · 1 versionHigh 7.5Preferred score · CVE.org (CNA)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HSourcesAll 7 agree
- OSV · PypiEcosystem advisory · calculated7.5HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- OSV · UbuntuEcosystem advisory · calculated7.5HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- OSV · DebianEcosystem advisory · calculated7.5HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- OSV · WolfiEcosystem advisory · calculated7.5HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- OSV · ChainguardEcosystem advisory · calculated7.5HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- NVDNIST7.5HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS trend
Probability
0.39%
Chance of exploitation in the next 30 days
Percentile
31%
Versus all other CVEs
30-day change
0.00 pp
From 0.39% on 19-09-2026
19-09-202619-10-2026
EPSS score0.39%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
1 foundPillow
Maturity: poc
Weaknesses
CWE · root cause- CWE-400Uncontrolled Resource ConsumptionThe product does not properly control the allocation and maintenance of a limited resource.
- CWE-770Allocation of Resources Without Limits or ThrottlingThe product allocates a reusable resource or group of resources on behalf of an actor without imposing any intended restrictions on the size or number of resources that can be allocated.
Affected systems
Chainguard15 products
- label-studio< 1.23.0-r11
- lmcache-cuda-12.8< 0.5.3-r0
- mlflow< 3.14.0-r2 | < 3.16.0-r0
- open-webuiAll versions (No fix recorded) | < 0.11.0-r0 | < 0.10.2-r1
- openstack-horizon-2025.2< 25.5.2_git20260617-r4
Wolfi5 products
- mlflow< 3.14.0-r2 | < 3.16.0-r0
- open-webuiAll versions (No fix recorded) | < 0.11.0-r0 | < 0.10.2-r1
- superset-6.0< 6.0.0-r13
- superset-6.1< 6.1.0-r6
- superset-6.1-iamguarded-compatAll versions (No fix recorded)
Ubuntu2 products
- pillowAll versions (No fix recorded)
- pillow-python2All versions (No fix recorded)
Debian1 product
- pillowAll versions (No fix recorded) | < 12.3.0-1
PyPI1 product
- pillow≥ 5.1.0, < 12.3.0
Python1 product
- pillow≥ 5.1.0, < 12.3.0
Python-pillow1 product
- pillow≥ 5.1.0, < 12.3.0
7 vendors · 26 products
References
12 links- github.com/python-pillow/Pillow/security/advisories/GHSA-jjj6-mw9f-p565X Refsource CONFIRMWEBREPORTAdvisoryExploitVendor Advisory
- github.com/python-pillow/Pillow/commit/f7a31ea75e460e108c37126da1f47812f21f6b09X Refsource MISCWEBFIXPatch
- pypi.org/project/pillowPACKAGE
