CVE-2026-34745Patch(shaneisrael / fireshare)

LOWCVSS 9.1 · CRITICAL

Signal is active with 2 mentions in latest observed window

Immediate actions

  • Patch shaneisrael fireshare systems immediately

Recommended action window: Monitor and triage in normal cycle

NVD description

Fireshare facilitates self-hosted media and link sharing. Prior to version 1.5.3, the fix for CVE-2026-33645 was applied to the authenticated /api/uploadChunked endpoint but was not applied to the unauthenticated /api/uploadChunked/public endpoint in the same file (app/server/fireshare/api.py). An unauthenticated attacker can exploit the checkSum parameter to write arbitrary files with attacker-controlled content to any writable path on the server filesystem. This issue has been patched in version 1.5.3.

0.5/ 10 priority

Sources & remediation

Weakness type (CWE)
CWE-22

Priority

LOW

Exploitation

NONE

PoC

YES

Patch

AVAILABLE

Momentum

STABLE

Are you affected?

If you run products in this scope, you should treat this CVE as relevant to your environment.

  • fireshare

Threat summary

  • Patch or workaround signal is available
  • 4 mentions across 2 observed days
  • Momentum state: stable

What's happening

  • Patch or workaround mentioned in 2 signals
  • Technical details provided in 2 signals
  • Disclosure: 1 classified signal
  • General: 1 classified signal
  • Peaked 1d ago at 2 mentions (2026-04-02); latest day: 2
  • 4 total mentions across 2 days

Affected systems

Products
fireshare

Deep dive

Activity timeline4 mentions / 2d
01122Mentions · 2026-04-02: 2Mentions · 2026-04-03: 2Patch / Workaround · 2026-04-02: 2Technical Details · 2026-04-02: 204-0204-03
Signal classification3 categories
Patch
250.0%
Disclosure
125.0%
General
125.0%
Referenced assets4 URLs
Classification over time
DateTotalLabels
2026-04-022
Patch2
2026-04-032
Disclosure1General1
Full discourse4 posts
  • CVE@CVEnew
    General

    CVE-2026-34745 Fireshare facilitates self-hosted media and link sharing. Prior to version 1.5.3, the fix for CVE-2026-33645 was applied to the authenticated /api/uploadChunked endpo… https://www.cve.org/CVERecord?id=CVE-2026-34745

    Post summary

    The excerpt merely cites CVE‑2026‑34745 and points to the CVE record without offering details on exploitation, patching, or technical specifics.

    00000144
    56.9K followersView on X
  • The Hacker Wire@TheHackerWire
    Disclosure

    🔴 CVE-2026-34745 - Critical Fireshare facilitates self-hosted media and link sharing. Prior to version 1.5.3, the fix for CVE-2026-33645 was applied to the authenticated /api/uploadChunked endpoint but was not appli... https://www.thehackerwire.com/vulnerability/CVE-2026-34745/ https://t.co/RFXWLr83La

    Post summary

    A brief announcement highlights a critical vulnerability, CVE‑2026‑34745, in the Fireshare media sharing platform, noting that a previous fix for a related CVE was applied before version 1.5.3 but providing limited contextual details.

    0000051
    163 followersView on X
  • CVEFind.com@CveFindCom
    Patch

    [CVE-2026-34745: CRITICAL] Fireshare v1.5.3 patched a security vulnerability in unauthenticated /api/uploadChunked/public endpoint. Attackers could exploit the checkSum parameter to write files on the server.#cve,CVE-2026-34745,#cybersecurity https://cvefind.com/CVE-2026-34745

    Post summary

    Fireshare v1.5.3 released a patch for a critical CVE involving unauthenticated file uploads via a checksum parameter, preventing arbitrary file writes on the server.

    00000450
    617 followersView on X
  • 0day Signal@0dayPublishing
    Patch

    🚨 CVE-2026-34745: Unauthenticated Path Traversal A... Devs patched the auth endpoint but forgot the public one - classic incomplete fix leaving unauthenticated RCE via check... https://zerodaysignal.com/vulnerability/CVE-2026-34745 #netsec #vulnerability #CVE #sysadmin #zeroday

    Post summary

    The advisory points out that an incomplete patch left a public endpoint vulnerable to unauthenticated RCE via path traversal, emphasizing the missing fix.

    0000068
    193 followersView on X
CPE platform detail1 entries

1 of 1 entries

PartVendorProductVersionTarget SWTarget HW
Appshaneisraelfireshare---

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