CVE-2025-15282

MEDIUMNVD 6.0

6.0

User-controlled data URLs parsed by urllib.request.DataHandler allow injecting headers through newlines in the data URL mediatype.

CVSS v3: 6.0
EG Score: 0.0(none)
EPSS: 16.6%
KEV: Not listed

Published

January 20, 2026

Last Modified

April 15, 2026

References (9)

Vendor Advisories for CVE-2025-15282(6)

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

RHSA-2026:21275
Red Hat Product SecurityCritical
Red Hat Security Advisory: Red Hat Update Infrastructure 5.1 security update
RHSA-2026:19177
Red Hat Product SecurityHigh
Red Hat Security Advisory: python3.12 security update
RHSA-2026:19064
Red Hat Product SecurityHigh
Red Hat Security Advisory: python3.12 security update
RHSA-2026:10950
Red Hat Product SecurityHigh
Red Hat Security Advisory: python3.12 security update
RHSA-2026:8824
Red Hat Product SecurityHigh
Red Hat Security Advisory: Red Hat Hardened Images RPMs bug fix and enhancement update
RHSA-2026:8822
Red Hat Product SecurityHigh
Red Hat Security Advisory: Red Hat Hardened Images RPMs bug fix and enhancement update

Patch Availability(9)

Vendor / Ecosystem	Fixed in / Patch	Released	Source
ubuntu	python3.9-venv (3.9.5-3ubuntu0~20.04.1+esm9) @ focal	2026-05-21	ubuntu
ubuntu	python2.7-minimal (2.7.18-13ubuntu1.5+esm8) @ jammy	2026-05-21	ubuntu
redhat	python3.12-0:3.12.13-2.el9_8	2026-05-19	redhat
redhat	python3.12-0:3.12.13-2.el10_2	2026-05-19	redhat
redhat	python3.12-0:3.12.13-2.el8_10	2026-04-27	redhat
redhat	python3-11-main-3.11.15-4.hum1	2026-04-17	redhat
redhat	python3-12-main-3.12.13-3.hum1	2026-04-17	redhat
redhat	python3-14-main-3.14.4-1.hum1	2026-04-11	redhat
redhat	python3-13-main-3.13.13-1.hum1	2026-04-10	redhat

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.

Weakness Classification(1)

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

CWE-93CRLF Injection

Additional Vendor Advisories

(4)

Vendors that published advisories for this CVE beyond the curated set above. Broader coverage but minimal per-row detail — click through for the original advisory.

Data Freshness Timeline

(refreshed 20× in last 7d / 20× in last 30d)

Every time one of our enrichment pipelines (NVD, MITRE cvelistV5, EPSS, CISA KEV, GHSA, OSV, vendor advisories) ran against this CVE. Most recent first.

2026-05-31 22:30 UTCepss_batch
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2026-05-31 00:16 UTCepss_batch
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2026-05-26 07:18 UTCepss_batch
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2026-05-26 07:18 UTCepss_batch

Frequently asked(5)

What is CVE-2025-15282?

CVE-2025-15282 is a medium vulnerability published on January 20, 2026. User-controlled data URLs parsed by urllib.request.DataHandler allow injecting headers through newlines in the data URL mediatype.

When was CVE-2025-15282 disclosed?

CVE-2025-15282 was first published in the National Vulnerability Database on January 20, 2026, with the most recent update on April 15, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2025-15282 actively exploited?

CVE-2025-15282 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 16.6% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2025-15282?

CVE-2025-15282 has a CVSS v3 base score of 6.0 (NVD). EchelonGraph synthesises NVD + CISA KEV + FIRST EPSS + GHSA into a combined EG score of 0.0.

How do I remediate CVE-2025-15282?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2025-15282, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

See which npm, PyPI, Go, and Maven packages are affected by CVE-2025-15282

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CVE-2025-15282

Published

Last Modified

References (9)

Vendor Advisories for CVE-2025-15282(6)

Patch Availability(9)

Weakness Classification(1)

Additional Vendor Advisories

Data Freshness Timeline

Frequently asked(5)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2025-15282?

Same vendor

Same CWE

CVE-2025-15282

📅 Published

🔄 Last Modified

🔗 References (9)

📣 Vendor Advisories for CVE-2025-15282(6)

Patch Availability(9)

Weakness Classification(1)

Additional Vendor Advisories

Data Freshness Timeline

❓ Frequently asked(5)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2025-15282?

🔗 Related CVEs(same vendor + same CWE)

Same vendor

Same CWE

Published

Last Modified

References (9)

Vendor Advisories for CVE-2025-15282(6)

Frequently asked(5)

Related CVEs(same vendor + same CWE)