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Tarsnap

By Tarsnap Backup Inc. Bug bounty on Self-hosted tarsnap.com

Accepting reports
Go to program Website
Top reward
$2,000
Top severity paid
Not published
Assets in scope
5
Public CVEs
0
Last change
No changes yet

At a glance

What to know before you start testing.

Pays up to $2,000
top reward, from $1.
Report by email
[email protected]
No safe harbor
No promise about legal action.
Paid by Tarsnap account credits, US dollar cheque
No identity requirement stated.
No public write-ups
Keep findings private.

Rewards

What the company's own policy page says it pays.

The policy page has no reward table. Here is what it says, in its own words.

Top reward
$2,000 $1000 │ $2000 │ A bug which allows someone intercepting Tarsnap traffic to decrypt Tarsnap users' data.
Lowest reward
$1 $1 │ $2 │ Cosmetic errors in the Tarsnap source code or website, e.g., typos in website text or source code comments.
Hall of fame
Yes Past Tarsnap bug bounty recipients are listed here .

Summarised with AI from the company's policy, read 12 Nov 2026, and checked word for word against it. Read the original

Scope

5 assets you may test, 1 excluded.

Source code 4

  • kivaloo
  • scrypt
  • spiped
  • Tarsnap source code

Domains 1

  • tarsnap.com
Out of scope (1)
  • Tarsnap website

Rules

What the policy asks of you, and the bug types it won't reward, quoted from Tarsnap's policy.

While testing

  • please do not run automated vulnerability scanners against the Tarsnap website
  • Please put the words "bug bounty" into the subject line of your email.
  • When reporting a bug, please mention if you would like to remain anonymous.
  • Reports of security-related bugs are not eligible for bounties if the bugs are publicly disclosed prior to being fixed.

Summarised with AI from the company's policy, read 12 Nov 2026, and checked word for word against it. Read the original

Changes

Tracked since 11 Nov 2026. Last checked 5 hours ago.

No changes yet. When the rewards or scope move, you will see it here and in the RSS feed.

Public CVEs

Published vulnerabilities in this vendor's products, from the NVD.

Search NVD

No CVEs matched yet. We match NVD records by vendor name, so products sold under another name can be missing.