Early access. The directory is still filling out, and every rating here comes from a researcher's reported experience.

In brief. Merck & Co., Inc., Rahway, NJ, USA is a vulnerability disclosure program on HackerOne. It does not pay bounties. It received 136 reports in the 90 days to November 7, 2026, about 45 per in-scope asset. As of Nov 7, 2026. Markdown for agents

NR Unrated

Merck & Co., Inc., Rahway, NJ, USA

3 more reviews needed for a grade
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Program metrics HackerOne, published

These are HackerOne’s own figures for this program, taken from its public page. Researchers did not report them, and they don't count toward the BugRater grade. Captured 7 Nov 2026.

What it pays, by severity

Critical amount not published 43 reports
High amount not published 138 reports
Medium amount not published 201 reports
Low amount not published 260 reports

Intake & responsiveness, last 90 days

Reports received
136
in 90 days
Resolved
683
all time, last one 4 days ago
Participants
223
hunters engaged
Response efficiency
93%
meeting its targets, HackerOne’s figure
SLA misses
0
targets missed
Reports received, day by day, last 29 days 120–140
10 Oct 136 reports 7 Nov

Response targets it sets itself

First response
2 days
Triage
2 days
Bounty
30 days
Resolution
30 days

These are targets the program set. They don't show whether it meets them.

Barriers to submitting

Open to submit. HackerOne lists no requirements for submitting a report here.

Over 79 days (57 snapshots): intake up 63 reports; response efficiency up 19 points.

See how this program’s report load compares to others

Reviews

0 published

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Who this program credits

228 credited

Researchers HackerOne shows on this program’s public thanks list, best position first. “Recognised” is how many of a hunter’s submissions the program accepted; the ratio is their signal here, not our judgement of them.

# Researcher Reputation Recognised / submitted
1 aawartkc 1,262 154 / 168 92%
2 pr0gx 639 86 / 96 90%
3 arielrachamim 282 41 / 46 89%
4 hrithikbot 210 30 / 30 100%
5 redhotchilihacker_ 154 22 / 25 88%
6 samet 128 19 / 20 95%
7 nhienit2010 77 13 / 18 72%
8 0xmoose 67 4 / 7 57%
9 dipa996 65 13 / 16 81%
10 alex_volk 63 9 / 9 100%
10 conda 63 9 / 11 82%
12 en0ne 60 5 / 6 83%
13 sheikhrishad0 51 8 / 9 89%
14 cinzinga 49 7 / 7 100%
14 minoto 49 7 / 9 78%
16 mizzle 42 6 / 6 100%
16 omkar1_avasthi 42 6 / 9 67%
16 rameemmuhammed 42 3 / 3 100%
16 virus0x01 42 6 / 6 100%
20 leonishan 39 7 / 8 88%
21 mariobrow 35 5 / 9 56%
22 ivoabreu 30 5 / 6 83%
23 0xthem7 28 4 / 4 100%
23 13c50k4 28 4 / 4 100%
23 ghaddarittoo 28 2 / 4 50%

Showing the top 25 of 228 credited on HackerOne.

Program profile HackerOne, imported

HackerOne published these facts on the program's page. Researchers did not report them, and they don't count toward the BugRater grade. Last checked 7 Nov 2026.

Responsiveness
93% HackerOne’s figure
Swag
No
Currency
USD
Submissions
Open
Launched
Mar 2023
Scope entries
9 HackerOne’s count

Scope

9 assets
AssetTypeEligibilityMax severity
*.merck.com URL submit only Critical
*.merckgroup.com OTHER out None
*.msd.com URL submit only Critical
All other applications (web sites, web applications, web services, and mobile applications) owned by Merck & Co., Inc., Rahway, NJ, USA OTHER submit only Critical
Assets owned by Merck KGaA, Darmstadt, Germany (EMD Group) OTHER out None
Show all 9 assets
AssetTypeEligibilityMax severity
auth-uat.merck.com URL out None
engagezone.msd.com URL out None
uat-accesscodes.msd.com URL out None
uniauth.merck.com URL out None