CVE-2026-59198

HIGHNVD 7.57.5
EchelonGraph scoreMEDIUM confidence

“—” beside the score: it is equal to NVD's CVSS score.

This high-severity CVE scores 7.5 under NVD CVSS v3. EPSS exploit probability: 0.3% (22nd percentile of EPSS-scored CVEs). No GitHub Security Advisory CVSS is on record for this CVE.

Triggered by: Headline CVSS from NVD CVSS v3
Sources: EPSS, NVD CVSS v3
Elevated
7.5EG
EchelonGraph verdictPlan a fixRemediate within your standard update timelines (the SSVC decision on this page).
  • CISA's Vulnrichment rates exploitation as PoC; EchelonGraph holds no exploit-code reference for it
CISA-KEV: Not listedEPSS PROB: 0.3%CVSS: 7.5Exploit: No code on recordExposed services: Not assessed

A fix is available — apply it.

Pillow is a Python imaging library. From 5.2.0 until 12.3.0, Pillow's TGA RLE encoder reads past its packed row buffer when saving a mode 1 image with TGA RLE compression, allowing adjacent process heap bytes to be copied into the generated TGA file. This issue is fixed in version 12.3.0.

CVSS v3
7.5
EG Score
7.5HIGHmedium confidence
EG Risk
50
EG Risk 50/100

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed (value × EchelonGraph’s weight)
Severity75% × 45%
The EG Score, 7.5 of 10.
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 or medium mission impact; Track* at high (mission-essential systems).
Exploitation public PoC (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact partial (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.
EPSS PROB
0.3%
EPSS %ILE
22nd
KEV
Not listed

SSVC (CISA's decision table, applied by EchelonGraph)Track at low or medium mission impact; Track* at high (mission-essential systems).

A fix is available. Apply it within your standard update timelines.

Exploitation public PoC (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact partial (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)60 days if the affected system is publicly exposed; Fix on system upgrade if it is not.

In CISA KEV no (CISA's KEV catalog) · Automatable no (CISA Vulnrichment) · Technical impact partial (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

July 14, 2026

Last Modified

July 14, 2026

Advisory Details (4)

Auto-updated Jul 16, 2026
Patch available. Sources: github_commit, github_pr, github_release, github.
GitHub advisoryMentions a patch (unverified)

Pillow TGA RLE encoder can serialize up to ~57 KB of adjacent heap data into generated images · Advisory · python-pillow/Pillow · GitHub

https://github.com/python-pillow/Pillow/security/advisories/GHSA-fj7v-r99m-22gq
GitHub release Patch Available

12.3.0

Patch available: python-pillow/Pillow 12.3.0

https://github.com/python-pillow/Pillow/releases/tag/12.3.0
GitHub pull request Patch Available

Prevent saving 1 mode images as TGA with run-length encoding

Patch available: python-pillow/Pillow 12.3.0 (PR #9709 merged 2026-06-22)

https://github.com/python-pillow/Pillow/pull/9709
GitHub commit Patch Available

commit eada3cbd7fb9 (python-pillow/Pillow)

Patch available: python-pillow/Pillow 12.3.0 (contains commit eada3cbd7fb9)

https://github.com/python-pillow/Pillow/commit/eada3cbd7fb9963ee90673fb7b5270124a0d5f4b

Vendor Advisories for CVE-2026-59198(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Patch Availability(1)

Vendor / EcosystemFix (by version range) / PatchReleasedSource
ubuntupython3-pil.imagetk (12.1.1-2ubuntu1.3) @ resolute2026-10-01ubuntu

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

(5 across 5 ecosystems)
Debian:11(1)
PackageVulnerable rangeFix by version rangeDependents
pillow10.0.0-1 ... 9.5.0-1 (38 versions)
  • every version on: no fix on record
—
Debian:12(1)
PackageVulnerable rangeFix by version rangeDependents
pillow10.0.0-1 ... 9.5.0-1 (23 versions)
  • every version on: no fix on record
—
Debian:13(1)
PackageVulnerable rangeFix by version rangeDependents
pillow11.1.0-5 ... 12.3.0-1 (13 versions)
  • every version on: no fix on record
—
Debian:14(1)
PackageVulnerable rangeFix by version rangeDependents
pillow11.1.0-5 ... 12.2.0-1 (8 versions)
  • every version up to 12.3.0-1: fixed in 12.3.0-1
—
PyPI(1)
PackageVulnerable rangeFix by version rangeDependents
pillow10.0.0 ... 9.5.0 (47 versions)
  • 5.2.0 up to 12.3.0: fixed in 12.3.0
—

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

All Vendor Advisories

(1)

Every vendor that published an advisory referencing this CVE — pulled from our cve_vendor_advisories aggregation. Click any row for the vendor's original advisory page.

Data Freshness Timeline

(refreshed 12× in last 7d / 41× 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 it from the CNA feed. 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). Most recent first.

Showing the most recent 100 of 155 refreshes on record for this CVE.

A repeat, a row identical to one the same pipeline wrote less than 10 seconds earlier, is not a separate refresh and is not counted. None are among the latest 100 rows. The 55 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-10-13 16:34 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
  2. 2026-10-13 16:15 UTCEG score recompute
  3. 2026-10-12 16:34 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
  4. 2026-10-12 15:52 UTCEG score recompute
  5. 2026-10-11 19:36 UTCEG score recompute
  6. 2026-10-11 16:51 UTCEG score recompute
  7. 2026-10-11 14:14 UTCEG score recompute
  8. 2026-10-11 13:49 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
  9. 2026-10-10 20:00 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
  10. 2026-10-09 20:07 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
  11. 2026-10-08 17:13 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
  12. 2026-10-07 23:48 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
  13. 2026-10-06 15:18 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
  14. 2026-10-05 17:43 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
  15. 2026-10-04 23:22 UTCEPSS rescoreEPSS 0.3% · 21st percentile
  16. 2026-10-03 14:26 UTCEPSS rescoreEPSS 0.3% · 21st percentile
  17. 2026-10-02 17:56 UTCEPSS rescoreEPSS 0.3% · 21st percentile
  18. 2026-10-01 19:50 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  19. 2026-10-01 13:23 UTCEG score recompute
  20. 2026-10-01 13:23 UTCVendor advisory
  21. 2026-09-30 15:03 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  22. 2026-09-29 15:22 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  23. 2026-09-28 13:51 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  24. 2026-09-28 09:20 UTCEG score recompute
  25. 2026-09-28 09:20 UTCVendor advisory
Show 75 more
  1. 2026-09-27 13:48 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  2. 2026-09-26 15:59 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  3. 2026-09-24 14:04 UTCEPSS rescoreEPSS 0.5% · 39th percentile
  4. 2026-09-24 09:51 UTCEG score recompute
  5. 2026-09-24 09:51 UTCVendor advisory
  6. 2026-09-23 17:54 UTCEPSS rescoreEPSS 0.3% · 25th percentile
  7. 2026-09-23 03:55 UTCEG score recompute
  8. 2026-09-23 03:55 UTCVendor advisory
  9. 2026-09-20 20:16 UTCEPSS rescoreEPSS 0.3% · 25th percentile
  10. 2026-09-18 19:28 UTCEPSS rescoreEPSS 0.3% · 25th percentile
  11. 2026-09-18 04:54 UTCEG score recompute
  12. 2026-09-18 04:54 UTCVendor advisory
  13. 2026-09-17 19:31 UTCEPSS rescoreEPSS 0.3% · 25th percentile
  14. 2026-09-16 14:08 UTCEPSS rescoreEPSS 0.3% · 25th percentile
  15. 2026-09-16 05:15 UTCEPSS rescoreEPSS 0.3% · 25th percentile
  16. 2026-09-15 03:11 UTCEPSS rescoreEPSS 0.3% · 25th percentile
  17. 2026-09-14 11:10 UTCVendor advisory
  18. 2026-09-13 23:27 UTCEG score recompute
  19. 2026-09-13 23:27 UTCVendor advisory
  20. 2026-09-13 16:47 UTCEPSS rescoreEPSS 0.3% · 25th percentile
  21. 2026-09-13 07:53 UTCEG score recompute
  22. 2026-09-13 07:53 UTCVendor advisory
  23. 2026-09-12 13:28 UTCVendor advisory
  24. 2026-09-12 01:45 UTCEG score recompute
  25. 2026-09-12 01:45 UTCVendor advisory
  26. 2026-09-11 14:53 UTCEPSS rescoreEPSS 0.3% · 25th percentile
  27. 2026-09-10 09:35 UTCEPSS rescoreEPSS 0.3% · 25th percentile
  28. 2026-09-08 22:01 UTCEPSS rescoreEPSS 0.3% · 25th percentile
  29. 2026-09-08 01:44 UTCEG score recompute
  30. 2026-09-08 01:44 UTCVendor advisory
  31. 2026-09-07 16:01 UTCEPSS rescoreEPSS 0.3% · 25th percentile
  32. 2026-09-06 13:47 UTCEPSS rescoreEPSS 0.3% · 25th percentile
  33. 2026-09-06 13:46 UTCVendor advisory
  34. 2026-09-05 21:17 UTCEG score recompute
  35. 2026-09-05 21:17 UTCVendor advisory
  36. 2026-09-04 05:07 UTCEPSS rescoreEPSS 0.3% · 25th percentile
  37. 2026-09-02 14:12 UTCEPSS rescoreEPSS 0.3% · 25th percentile
  38. 2026-09-01 13:54 UTCEPSS rescoreEPSS 0.3% · 24th percentile
  39. 2026-09-01 04:40 UTCEPSS rescoreEPSS 0.3% · 24th percentile
  40. 2026-08-31 05:39 UTCEG score recompute
  41. 2026-08-30 19:17 UTCEPSS rescoreEPSS 0.3% · 24th percentile
  42. 2026-08-30 05:24 UTCEG score recompute
  43. 2026-08-30 01:22 UTCEPSS rescoreEPSS 0.3% · 24th percentile
  44. 2026-08-28 21:42 UTCEPSS rescoreEPSS 0.3% · 24th percentile
  45. 2026-08-28 02:02 UTCEG score recompute
  46. 2026-08-27 14:25 UTCEPSS rescoreEPSS 0.3% · 24th percentile
  47. 2026-08-27 01:31 UTCEG score recompute
  48. 2026-08-26 14:46 UTCEPSS rescoreEPSS 0.3% · 24th percentile
  49. 2026-08-26 01:44 UTCEG score recompute
  50. 2026-08-25 13:49 UTCEPSS rescoreEPSS 0.3% · 24th percentile
  51. 2026-08-24 21:50 UTCEG score recompute
  52. 2026-08-24 10:07 UTCEG score recompute
  53. 2026-08-23 10:39 UTCEG score recompute
  54. 2026-08-23 00:19 UTCEPSS rescoreEPSS 0.3% · 24th percentile
  55. 2026-08-22 11:14 UTCEG score recompute
  56. 2026-08-21 23:49 UTCEPSS rescoreEPSS 0.3% · 24th percentile
  57. 2026-08-21 00:01 UTCEG score recompute
  58. 2026-08-20 22:55 UTCEPSS rescoreEPSS 0.3% · 24th percentile
  59. 2026-08-20 00:33 UTCEG score recompute
  60. 2026-08-19 17:04 UTCEPSS rescoreEPSS 0.3% · 24th percentile
  61. 2026-08-18 20:04 UTCEG score recompute
  62. 2026-08-18 13:48 UTCEPSS rescoreEPSS 0.3% · 24th percentile
  63. 2026-08-17 14:39 UTCEG score recompute
  64. 2026-08-17 13:47 UTCEPSS rescoreEPSS 0.3% · 24th percentile
  65. 2026-08-16 15:13 UTCEG score recompute
  66. 2026-08-16 14:56 UTCEPSS rescoreEPSS 0.3% · 24th percentile
  67. 2026-08-16 03:30 UTCEG score recompute
  68. 2026-08-16 02:14 UTCEPSS rescoreEPSS 0.3% · 24th percentile
  69. 2026-08-15 04:04 UTCEG score recompute
  70. 2026-08-15 01:30 UTCEPSS rescoreEPSS 0.3% · 23rd percentile
  71. 2026-08-14 04:39 UTCEG score recompute
  72. 2026-08-13 22:00 UTCEPSS rescoreEPSS 0.3% · 23rd percentile
  73. 2026-08-12 16:59 UTCEG score recompute
  74. 2026-08-12 13:51 UTCEPSS rescoreEPSS 0.3% · 23rd percentile
  75. 2026-08-11 17:33 UTCEG score recompute

Related CVEs(same product + same CWE)

Frequently asked(5)

What is CVE-2026-59198?
CVE-2026-59198 is a high-severity vulnerability; its CVE record was published on July 14, 2026. Pillow is a Python imaging library. From 5.2.0 until 12.3.0, Pillow's TGA RLE encoder reads past its packed row buffer when saving a mode 1 image with TGA RLE compression, allowing adjacent process heap bytes to be copied into the generated TGA file. This issue is fixed in version 12.3.0.
When was the CVE record for CVE-2026-59198 published?
The CVE record for CVE-2026-59198 was published on July 14, 2026. That is the record's publication date; the vulnerability itself may have been made public earlier. EchelonGraph's copy of the record carries a last-modified date of July 14, 2026; the record at its source may have been updated since.
Is CVE-2026-59198 actively exploited?
CVE-2026-59198 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.3% probability of exploitation in the next 30 days (22nd percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-59198?
CVE-2026-59198 has a CVSS v3 base score of 7.5 (NVD).
How do I remediate CVE-2026-59198?
A fix for CVE-2026-59198 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-59198 are linked in the Vendor Advisories panel on this page.

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