CVE-2026-35465

HIGHNVD 7.57.5—
EchelonGraph scoreMEDIUM confidence

This high-severity CVE scores 7.5 under NVD CVSS v3. EPSS exploit probability: 0.4%, top 64% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).

Triggered by: NVD CVSS baseline
Sources: epss, nvd
Trending — 3 sources updated this week
7.5
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 0%CVSS: 7.5Exploit: NoneExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

SecureDrop Client is a desktop app for journalists to securely communicate with sources and handle submissions on the SecureDrop Workstation. In versions 0.17.4 and below, a compromised SecureDrop Server can achieve code execution on the Client's virtual machine (sd-app) by exploiting improper filename validation in gzip archive extraction, which permits absolute paths and enables overwriting critical files like the SQLite database. Exploitation requires prior compromise of the dedicated SecureDrop Server, which itself is hardened and only accessible via Tor hidden services. Despite the high attack complexity, the vulnerability is rated High severity due to its significant impact on confidentiality, integrity, and availability of decrypted source submissions. This issue is similar to CVE-2025-24888 but occurs through a different code path, and a more robust fix has been implemented in the replacement SecureDrop Inbox codebase. The issue has been fixed in version 0.17.5.

CVSS v3
7.5
EG Score
7.5(medium)
EG Risk
34(Track)
EG Risk 34/100SSVC: Track

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
Severity75% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS
35.8%
KEV
Not listed

Published

April 18, 2026

Last Modified

April 23, 2026

Advisory Details (3)

Auto-updated Jun 9, 2026
⚠️ Active exploitation confirmed. Patch available. Sources: github_commit, github.
github Patch Available

Path injection in SecureDrop Client read_gzip_header_filename() · Advisory · freedomofpress/securedrop-client · GitHub

https://github.com/freedomofpress/securedrop-client/security/advisories/GHSA-2jrc-x8fq-prvc
github_commit

commit e518adaf897e (freedomofpress/securedrop-client)

Fix landed in freedomofpress/securedrop-client commit e518adaf897e — awaiting tagged release

https://github.com/freedomofpress/securedrop-client/commit/e518adaf897e7838467ccf9e1f28152ae6fe3655
generic🔴 Active Exploitation

securedrop-client/changelog.md at 8dc8bb6e307b13876d67f72d8a071202e2f39ab5 · freedomofpress/securedrop-client · GitHub

https://github.com/freedomofpress/securedrop-client/blob/8dc8bb6e307b13876d67f72d8a071202e2f39ab5/changelog.md?plain=1#L8

Weakness Classification(2)

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

Data Freshness Timeline

(refreshed 9× in last 7d / 40× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. 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. Most recent first.

  1. 2026-07-23 03:10 UTCEG score recompute
  2. 2026-07-22 14:08 UTCEPSS rescore
  3. 2026-07-21 15:24 UTCEPSS rescore
  4. 2026-07-20 17:08 UTCEPSS rescore
  5. 2026-07-20 07:34 UTCOSV refresh
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  70. 2026-05-20 16:48 UTCEG score recompute
  71. 2026-05-20 11:22 UTCEPSS rescore
  72. 2026-05-20 11:22 UTCEPSS rescore

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Frequently asked(5)

What is CVE-2026-35465?
CVE-2026-35465 is a high vulnerability published on April 18, 2026. SecureDrop Client is a desktop app for journalists to securely communicate with sources and handle submissions on the SecureDrop Workstation. In versions 0.17.4 and below, a compromised SecureDrop Server can achieve code execution on the Client's virtual machine (sd-app) by exploiting improper…
When was CVE-2026-35465 disclosed?
CVE-2026-35465 was first published in the National Vulnerability Database on April 18, 2026, with the most recent update on April 23, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-35465 actively exploited?
CVE-2026-35465 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 35.8% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-35465?
CVE-2026-35465 has a CVSS v3 base score of 7.5 (NVD).
How do I remediate CVE-2026-35465?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-35465, 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.

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